S31KB125

View detailed technical data, stock status, and sourcing information for: S31KB125
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-159-6277

Item Name Code

01873

Assigment Date

06/18/1971 (55 years ago)

A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes:nut (1), plain, slotted, hexagon.

3b thread class, right-hand thread direction, 0.650 inches minimum and 0.680 inches maximum head diameter, flat keyed head style, 0.102 inches maximum key length

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
Head Style: flat keyed
Head Diameter: 0.650 inches minimum and 0.680 inches maximum
Key Length: 0.102 inches maximum
Head Height: 0.062 inches nominal
Nut Style: blind rivet w/smooth round shank
Nut Diameter: 0.409 inches minimum and 0.413 inches maximum
Nut Length: 1.172 inches minimum and 1.202 inches maximum
Shank End Type: closed
Thread Series: unc
Thread Quantity Per Inch: 18
Nominal Thread Size: 0.312 inches
Material: steel comp 1108 or steel comp 1110 overall
Material Document And Classification: astm a549 assn std all material responses overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 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
S31KB125	Blind Rivet Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-159-6277?

The FSCG of the NSN 5310-00-159-6277 is 5310

Does the NSN 5310-00-159-6277 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-159-6277 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 5310-00-159-6277 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-159-6277 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 5310-00-159-6277 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Fri, Jun 18, 1971