The ABEC scale is an industry accepted standard for the tolerances of a ball bearing. It was developed by the Annular Bearing Engineering Committee (ABEC) of the American Bearing Manufacturers Association (ABMA). There are five classes from largest to smallest tolerances: 1, 3, 5, 7, and 9. The higher ABEC classes provide better precision, efficiency,[citation needed] and greater speed capabilities, but not make the components spin faster.[1] The ABEC rating does not specify many other critical factors, such as smoothness of the rolling contact surfaces, ball precision or quality/type of steel used. The bearing material is not specified in the ABEC grades. Military standard bearings not conforming to at least ABEC 1 cannot be classified as precision bearings as their tolerances are too loose. The scale is designed to allow a user to make an informed decision about the type of bearing they are purchasing. High rated bearings are intended for precision applications like aircraft instruments or surgical equipment. Lower grades are intended for the vast majority of applications such as vehicles, mechanical hobbies, skates, fishing reels and industrial machinery. High ABEC rated bearings allow optimal performance of critical applications requiring very high RPM and smooth operation. ISO’s equivalent standard is ISO 492.[2][3] All military standard bushings and bearings are DFAR compliant.
MS14101 Self Aligning, Self Lubricating, Low Speed Bearing. Narrow, Grooved Outer Ring, -65 Deg to 325 Deg (S/S By SAW-AS14101, 5 DEC 1994). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, […]
MS14198 Extra Strength Lock, Rod End, High Profile Lug (S/S By NASM14198, 17 JAN 1983). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, […]
MS17795 Oil Impregnated Sintered Bronze, Plain Type Bearing Sleeve (S/S By ASTM-B438, 9 NOV 1994). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, […]
MS17796 Oil Impregnated Sintered bronze, Flanged Bearing Sleeve. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. MS17796 BEARING, SLEEVE, FLANGED, SINTERED […]
MS19059 Chrome Alloy Steel Ball Bearing (S/S By ASTM F 2215, 31 JUL 1987). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, […]
MS19060 Corrosion resistant Ball Bearing (S/S By ASTM F 2215, 31 JUL 1987). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. […]
MS19061 Carbon Steel Ball Bearing (S/S By ASTM F 2215, 31 JUL 1987). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. […]
MS19068 Plain, Round, Retaining Nut Ball and Roller Bearing, Regular Series. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. MS19068 NUTS, […]
MS21154 Grooved Outer Ring, Self Aligning Plain Bearing, CNCL S/S By SAW AS21154. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. […]
MS21240 TFE Lined Plain Bearing sleeve, CNCL S/S By SAE AS81934/1. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. MS21240 BEARING, […]
MS21254 Washer Key Retaining wheel Bearing, CNCL S/S By NASM21258. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. MS21254 WASHER, KEY, […]
MS27120 Rod End, turnbuckle Clevis (General Purpose) (S/S By NASM27120, 9 MAY 2001). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. […]
MS27643 Self Aligning, Double Row, Anti Friction, Heavy duty Ball Bearing, Airframe, CNCL S/S By SAE AS27643. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, […]
MS27975 Rod End Adjusting Clevis, Wide and Narrow Forks, (Superseding AN486, S/S By NASM27975, 4 FEB 1999). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, […]
MS27976 Rod End Plain Clevis, Wide and Narrow Forks (S/S By NASM27976, 25 SEP 2001). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, […]
MS25812 Rod End Adjustable and Plain Clevis, Steel (S/S By NASM35812, 4 FEB 1999). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, […]
NAS1193 Positive Index Locking Device. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS1193 LOCKING DEVICE POSITIVE INDEX Contact Us For […]
NAS354 Extruded Aluminum Channels, Supplementary Series Inactive for Design See 10137. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS354 CHANNELS […]
NAS559 Rod End (Key Type) Lock. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS559 LOCK – ROD END (KEY TYPE) […]
NAS562 High Strength Stud Cam follower Needle Bearing. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS562 CAM FOLLOWER NEEDLE BEARING, […]
NAS75 Plain Press Fit Bushing, Steel or Cres. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS75 BUSHING – PLAIN PRESS […]
NAS76 Plain Press Fit Bushing, copper or Bronze. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS76 BUSHING – PLAIN FIT, […]
NAS77 Flanged Pres Fit Bushing, Steel, Cres, Bronze and Copper. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS77 BUSHING – […]
MS14238 Press Fit, Sleeve Flanged Ream Typed Bushing (S/S By SAW-AS14238, 2 APR 1987). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, […]
MS14315 Threaded (Outside Head, Inside Head and Face) Bushing Pipe, Brass or Bronze, Class 250 (30 MAY 2007). Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, […]
NAS42 Sleeve Rivet Spacer. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS42 SPACER, SLEEVE-RIVET Contact Us For Specification Details
NAS43 Screw and Bolt Sleeve Spacer. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS43 SPACER, SLEEVE – SCREW AND BOLT […]
NAS47 Non Metallic, Epoxy and Phenolic Screw and Bolt Sleeve Spacer. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS47 SPACER, […]
NAS537 Press Fit undersize Diameter, Sleeve bushing. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS537 BUSHING, SLEEVE – PRESS FIT […]
NAS538 Press Fit Undersize Inside Diameter Flanged Bushing. Bearings and Bushings can be found in different types and sizes including: MS14101, MS14198, MS14238, MS14315, MS17795, MS17796, MS19059, MS19060, MS19061, MS19068, MS21154, MS21240, MS21254, MS27120, MS27643, MS27975, MS27976, MS35812, NAS1193, NAS354, NAS42, NAS43, NAS47, NAS537, NAS538, NAS559, NAS562, NAS75, NAS76, NAS75. NAS538 BUSHING, FLANGED, PRESS FIT […]