21FC-524

View detailed technical data, stock status, and sourcing information for: 21FC-524
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-414-0241

Item Name Code

05277

Assigment Date

05/29/1995 (31 years ago)

A single metallic conductor of solid, stranded, or tinsel construction, designed to carry current in an electrical circuit. It may be a bare or insulated, may have metalic covering sheath, shield or and additional jacket. Refers to bulk quantities only. For items that are solid or stranded, insulated or uninsulated, and have the chemical composition specified but no conductivity (electrical properties) see wire,(as modified), includes litz wire and insulated/uninsulated armored, and ground wire. Excludes:braid, wire; fuse wire; resistance wire and magnet wire.

right-hand thread direction, 0.353 inches maximum nut height, 3b thread class, hexagon nut style, prevailing torque all metal design 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 all metal design
Nut Style: hexagon
Nut Height: 0.353 inches maximum
Width Across Flats: 0.492 inches minimum and 0.502 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.312 inches
Bearing Surface Type: chamfered
Material: steel overall
Surface Treatment: cadmium 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
21FC-524	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-414-0241?

The FSCG of the NSN 5310-01-414-0241 is 5310

Does the NSN 5310-01-414-0241 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-414-0241 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 5310-01-414-0241 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-414-0241 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 5310-01-414-0241 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Mon, May 29, 1995