Selflocking Nuts are steel fasteners that are typically used for a permanent installation, and are often suited for thin metal sheets and fastening near corners and edges. Selflocking Nuts are made to be strong and reliable and often feature a non-metallic locking element that prevents the mated hardware from loosening. For applications in the aerospace industry, as well as commercial and industrial industries, selflocking nuts are available in stainless steel and aluminum, with finishes that include anodized, silver plated, cadmium plated, and more.

Diamond Fasteners is a leading distributor and complete source for selflocking nuts of many sizes and types by quality manufacturers. Our inventory of selflocking nuts includes hex nuts, flanged selflocking nuts, castellated lightweight selflocking nuts, and many more. Click on the links corresponding to the listed selflocking nuts for more information and to download a spec sheet, as well as fill out a request for a quote.

MS14144

MS14144 Castellated Lightweight Self-Locking Nut, 450 Deg. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, NAS578: MS14144 NUT, SELF-LOCKING, LIGHTWEIGHT, CASTLELLATED, 450 DEGREE F CNCL S/S […]

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MS14145

MS14145 Castellated Lightweight thin Self Locking Nut, 450 Def. F CNCL S/S By NASM14145. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, NAS578: MS14145 NUT, SELF-LOCKING, […]

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MS14182

MS14182 Extended Washer Round Self Locking Nut, Nickel Alloy 718, 220 KSI FTU, 450 Deg F, Spline Drive, CNCL S/S By NASM14182. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, […]

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MS14222

MS14222 Mil-Standard Self Locking Hex Nut, 450 Deg. F, Reduced Head height, Ring Base, Corrosion Resistant Steel (S/S By NASM14222 27 Sep 1984) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, […]

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MS14491

MS14491 Flanged Self Locking Wheel Nut, Nickel Alloy 718, 220 KSI FTU, 450 Deg F., Spline Drive, CNCL S/S NASM14491. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, […]

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MS16228

MS16228 Mil-Standard Self Locking Thin Hex Nut, UNC 3B (Non Mettalic Insert) Austenitic Corrosion Resistant Steel, Nonmagnetic, 250 Def f. (S/S by NASM16228 4 AUG 1968) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, […]

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MS17825

MS17825 Mil-Spec Castellated Self Locking Hex Nut 250 Deg F, Non Metallic Insert (5 Feb 2004) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, NAS578: MS17825 […]

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MS17826

MS17826 Mil-Standard Castellated Self Locking Hex Nut, 250 Deg F, thin Non-Metallic Insert (30 Nov 1988) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, NAS578: MS17826 […]

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MS17828

MS17828 Mil-Spec Self Locking Hex Sheet Nut, Regular Height (Non Metallic Insert) 250 Deg. F, Nickel-Copper Alloy (S/S by NASM17828 19 JUL 1989) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, […]

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MS17829

MS17829 Mil-Spec Self Locking Hex Sheet Nut, Regular Height (Non Metallic Insert) 250 Deg. F, Corrosion Resistant Steel (S/S by NASM17829 6 JAN 1995) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, […]

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MS17830

MS17830 Mil-Spec Self Locking Hex Sheet Nut, Regular (Non Metallic Insert) 250 Deg. F and 450 Deg F, 300 Series Corrosion Resistant Steel (S/S by NASM17830 23 FEB 1998) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, […]

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MS21042

MS21042 Mil-Spec Self Locking Reduced Hex Sheet Nut 450 Deg. F Reduced height, Rin base, Non-Corrosion Reistant Steel (S/S by NASM21042 6 Jan 1995) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, […]

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MS21043

MS21043 Mil-Spec Self Locking Reduced Hex Sheet Nut 800 Deg. F Reduced height, Ring base, Corrosion Reistant Steel (S/S by NASM21043 30 JUN 1994) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, […]

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MS21044

MS21044 Mil-Spec Self-Locking Hex Sheet Nut, Regular Height 250 Deg F, 125 KSI, FTU (S/S By NASM21044 21 Sep 1993) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, […]

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MS21045

MS21045 Mil-Spec Self-Locking Hex Sheet Nut, Regular Height 450 Deg F, 125 KSI, FTU (S/S By NASM21045 5 Nov 1994) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, […]

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MS21046

MS21046 Mil-Spec Self-Locking Hex Sheet Nut, Regular Height 800 Deg F, 125 KSI, FTU (ASG) (S/S By NASM21046 9 JAN 1987) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, […]

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MS21083

MS21083 Mil-Standard Non Metallic Insert Self-Locking Nut, Low Height, 250 Deg. F (S/S By NASM21083 28 SEP 1993) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, […]

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MS21084

MS21084 Mil-Standard Self Locking Nut, Steel, 220 KSI FTU, 450 Deg. F., Flanged, MS33787 Wrenching Element (S/S By NASM21084 17 Oct 1988) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, […]

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MS21085

MS21085 Mil-Standard Self Locking Nut, Steel, 260 KSI FTU, 450 Deg. F., Flanged, MS33787 Wrenching Element (S/S By NASM21085 15 Mar 1978) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, […]

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MS21133

MS21133 Self Locking Steel Nut, 180 KSI FTU, 450 Deg F. Flanged, MS33787 Wrenching Element CNCL S/S By NASM21133. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, […]

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MS21224

MS21224 Mil-Spec Castellated Self Locking Hex Sheet Nut, Counterbored, Assembled Washer, 250 Deg. G, Non Metallic Insert for Self-Retaining Bolts. (S/S By NASM21224 23 Aug 1993) Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, […]

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MS21225

MS21225 Castellated Self Locking Hex Nut, 800 Deg F. CNCL S/S By NASM21225. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, NAS578: MS21225 NUT, SELF-LOCKING, CASTELLATED, […]

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MS21245

MS21245 Thin Self Locking Hex Nut, 450 Deg F 80 KSI FTU, CNCL S/S By NASM21245. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, NAS578: MS21245 […]

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NAS1291

NAS1291 Self Locking Hex Nut, Low Height, Lightweight. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, NAS578: NAS1291 NUT, SELF-LOCKING, HEXAGON-LOW HEIGHT, LIGHT WEIGHT Contact Us […]

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NAS577

NAS577 Floating Barrel Self Locking Nut, 180 KSI FTU. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, NAS578: NAS577 NUT, SELF-LOCKING, BARREL, FLOATING, 180 KSI FTU […]

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NAS578

NAS578 Floating Barrel Retainer Nut. Military Standard Self Locking Nuts are available in several sizes and types; other standards include: MS14145, MS14164, MS14182, MS14222, MS14491, MS16228, MS17829, MS17830, MS21042, MS21043, MS21044, MS21045, MS21046, MS21083, MS21084, MS21085, MS21133, MS21224, MS21225, MS21245, NAS1291, NAS577, NAS578: NAS578 RETAINER – FLOATING BARREL NUT Contact Us For Specification  

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