5310-00-449-2921

Find complete technical information, availability, and procurement data for: 5310-00-449-2921
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-449-2921

Item Name Code

05277

Assigment Date

01/01/1963 (63 years ago)

3b thread class, 0.500 inches nominal width across flats, prevailing torque with nonmetallic insert locking feature, 0.375 inches nominal nut height, right-hand thread direction

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 Height: 0.375 inches nominal
Width Across Flats: 0.500 inches nominal
Thread Series: unc
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.250 inches
Material: fiber locking insert
Material: steel comp 303 nut
Material Document And Classification: 66 fed std single material response nut

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
79U040	Hexagon Self-Locking Nut
SMB389300-3	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-449-2921?

The FSCG of the NSN 5310-00-449-2921 is 5310

Does the NSN 5310-00-449-2921 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-449-2921 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 5310-00-449-2921 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-449-2921 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 5310-00-449-2921 was assigned to the Federal Catalog?

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