21-E-083

View detailed technical data, stock status, and sourcing information for: 21-E-083
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-595-7421

Item Name Code

05277

Assigment Date

01/01/1963 (63 years ago)

0.575 inches minimum and 0.610 inches maximum nut height, hexagon nut style, 3b thread class, right-hand thread direction, prevailing torque with nonmetallic insert locking feature

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque with nonmetallic insert
Nut Style: hexagon
Nut Height: 0.575 inches minimum and 0.610 inches maximum
Width Across Flats: 0.741 inches minimum and 0.752 inches maximum
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unc
Thread Quantity Per Inch: 13
Nominal Thread Size: 0.500 inches
Countersink Angle: 88.0 degrees nominal nut
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Material: plastic polyhexamethylene amide locking insert
Material: steel comp 1137 nut
Material Document And Classification: 66 fed std single material response nut
Material Document And Classification: mil-m-20693,comp a,ty 1 mil spec single material response locking insert
Surface Treatment: cadmium and chromate overall except insert
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall except insert

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-174-7403	No Name Available	07/16/1997
5310-00-404-2142	No Name Available	08/01/1979
5310-00-565-4287	No Name Available	12/01/2006
5310-00-680-7520	No Name Available	01/01/1983
5310-00-780-9319	No Name Available	01/01/1960
5310-00-843-5957	No Name Available	09/24/2020
5310-00-843-8170	No Name Available	07/05/1967
5310-00-844-9219	No Name Available	05/28/1970
5310-00-887-3547	No Name Available	05/17/2001
5310-00-992-5996	No Name Available	02/05/2008
5310-01-028-2275	No Name Available	03/01/1978
5310-01-194-0403	No Name Available	01/01/1991
5310-01-384-2974	No Name Available	12/01/2002
5310-01-397-5509	No Name Available	09/01/1996
5310-01-429-4916	No Name Available	06/01/1998

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
1/2-13UNC-3B (C AD PLTD)	Hexagon Self-Locking Nut
122-5006519 PC 35	Hexagon Self-Locking Nut
122-5588687 PC 46	Hexagon Self-Locking Nut
122-6669168 PC 28	Hexagon Self-Locking Nut
122-6669169 PC 28	Hexagon Self-Locking Nut
122-6669171 PC 28	Hexagon Self-Locking Nut
122-6669172 PC 28	Hexagon Self-Locking Nut
122-669170 PC 28	Hexagon Self-Locking Nut
122-6722635 PC 47	Hexagon Self-Locking Nut
122-6722636 PC 31	Hexagon Self-Locking Nut
122-6776003 PC 32	Hexagon Self-Locking Nut
122-6776889 PC 25	Hexagon Self-Locking Nut
122-6818601 PC 11	Hexagon Self-Locking Nut
122-6818601 PC 94	Hexagon Self-Locking Nut
122-6818602 PC 49	Hexagon Self-Locking Nut
21-E-083	Hexagon Self-Locking Nut
2533408-120	Hexagon Self-Locking Nut
52NE-083	Hexagon Self-Locking Nut
5310PL0677579	Hexagon Self-Locking Nut
595-6404641 FIND 38	Hexagon Self-Locking Nut
6640211 FIND 29	Hexagon Self-Locking Nut
701-4323732 SH 33 PC 87	Hexagon Self-Locking Nut
701-4323732 SH 69 PC 80	Hexagon Self-Locking Nut
701-4323732 SH 70 PC 87	Hexagon Self-Locking Nut
701-4400248 P/N 12	Hexagon Self-Locking Nut
701-6938562 SH 1 PC 44	Hexagon Self-Locking Nut
701-6938564 SH 5 PC 54	Hexagon Self-Locking Nut
703-2298073 PIE	Hexagon Self-Locking Nut
7093E66 PIECE 57	Hexagon Self-Locking Nut
770-322	Hexagon Self-Locking Nut
83468	Hexagon Self-Locking Nut
915281	Hexagon Self-Locking Nut
AN365-813	Hexagon Self-Locking Nut
AN365-813A	Hexagon Self-Locking Nut
C720050C000	Hexagon Self-Locking Nut
C721050C000	Hexagon Self-Locking Nut
F52N1610-083	Hexagon Self-Locking Nut
MS17829-8C	Hexagon Self-Locking Nut
MS17829-8C 1/2- 13UNC-3B	Hexagon Self-Locking Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-00-595-7421?

The FSCG of the NSN 5310-00-595-7421 is 5310

Does the NSN 5310-00-595-7421 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-595-7421 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5310-00-595-7421 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-595-7421 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5310-00-595-7421 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963