NS202801-4-51

View detailed technical data, stock status, and sourcing information for: NS202801-4-51
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-331-8629

Item Name Code

05280

Assigment Date

12/29/1990 (35 years ago)

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

plate (floating) nut style, right-hand thread direction, 3b thread class, 1.375 inches maximum nut length, 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: plate (floating)
Nut Length: 1.375 inches maximum
Nut Height: 1.000 inches maximum
Plate Thickness: 0.051 inches nominal
Plate Width: 0.865 inches maximum
Thread Series: unjf
Features Provided: floating nut
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Material: iron alloy 660 nut
Material: iron alloy 660 shell
Material: steel comp 301 or steel comp 302 or steel comp 303 base
Material: steel comp 631 clip
Material: steel comp 631 spring
Material Document And Classification: ams5731 assn std single material response or ams5732 assn std single material response or ams5525 assn std single material response nut
Material Document And Classification: qq-s-763 fed spec single material response base
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed 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
03A242-4-51	Plate Self-Locking Nut
F52866-4-51	Plate Self-Locking Nut
NS202801-4-51	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-331-8629?

The FSCG of the NSN 5310-01-331-8629 is 5310

Does the NSN 5310-01-331-8629 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-331-8629 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 5310-01-331-8629 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-331-8629 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 5310-01-331-8629 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sat, Dec 29, 1990