639288

View detailed technical data, stock status, and sourcing information for: 639288
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-149-8525

Item Name Code

05277

Assigment Date

10/10/1971 (54 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

prevailing torque all metal design locking feature, right-hand thread direction, hexagon nut style, 0.219 inches minimum and 0.250 inches maximum nut height, 3b thread class

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: 0.219 inches minimum and 0.250 inches maximum
Width Across Flats: 0.367 inches minimum and 0.376 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 32
Hardness Rating: 32.0 rockwell c minimum and 48.0 rockwell c maximum
Nominal Thread Size: 0.190 inches
Bearing Surface Type: chamfered
Material: steel overall
Material Document And Classification: ams 5020 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ams 2400 assn std 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
639288	Hexagon Self-Locking Nut
69410-1032	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-149-8525?

The FSCG of the NSN 5310-00-149-8525 is 5310

Does the NSN 5310-00-149-8525 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-149-8525 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 5310-00-149-8525 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-149-8525 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 5310-00-149-8525 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sun, Oct 10, 1971