5310-00-521-8480

Find complete technical information, availability, and procurement data for: 5310-00-521-8480
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-521-8480

Item Name Code

21824

Assigment Date

01/01/1963 (63 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

2b thread class, 0.438 inches nominal washer outside diameter, 0.328 inches nominal overall height, right-hand thread direction, flat with turned back edge nut style

Product Characteristics

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

Thread Class: 2b
Thread Direction: right-hand
Washer Outside Diameter: 0.438 inches nominal
Overall Height: 0.328 inches nominal
Nut Style: flat with turned back edge
Nut Height: 0.180 inches nominal
Width Across Flats: 0.370 inches nominal
Thread Series: unf
Features Provided: casehardened
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Countersink Angle: 82.0 degrees nominal nut
Material: steel comp 1117 overall
Material Document And Classification: aisi assn std single material response overall
Surface Treatment: phosphate manganese overall
Surface Treatment Document And Classification: mil-p-16232,ty m,cl 2 mil spec single treatment response overall

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
SCB70003	Assembled Washer Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-521-8480?

The FSCG of the NSN 5310-00-521-8480 is 5310

Does the NSN 5310-00-521-8480 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-521-8480 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 5310-00-521-8480 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-521-8480 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 5310-00-521-8480 was assigned to the Federal Catalog?

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