5310-00-026-2121

Find complete technical information, availability, and procurement data for: 5310-00-026-2121
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-026-2121

Item Name Code

01861

Assigment Date

10/24/1972 (53 years ago)

A nut having an externally splined sleeve which holds it in position when forced into a hole of slightly smaller diameter.

spline nut style, 0.045 inches minimum and 0.055 inches maximum pilot length, right-hand thread direction, 2b thread class, 0.280 inches minimum and 0.283 inches maximum pilot diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2b
Thread Direction: right-hand
Pilot Diameter: 0.280 inches minimum and 0.283 inches maximum
Pilot Length: 0.045 inches minimum and 0.055 inches maximum
Nut Style: spline
Nut Diameter: 0.372 inches minimum and 0.378 inches maximum
Nut Height: 0.365 inches minimum and 0.385 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Material: steel comp 303 overall
Material Document And Classification: astm a582 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5340-00-121-8919	No Name Available	02/01/1991
5310-00-238-8438	No Name Available	08/01/1990
5325-00-548-7287	No Name Available	02/01/1991

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
277-003-1001	Spline Plain Nut
277-005-0004	Spline Plain Nut
364-1020P20	Spline Plain Nut
6254ASS1032	Spline Plain Nut
6254ASS1032-7	Spline Plain Nut
PIN120	Spline Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-026-2121?

The FSCG of the NSN 5310-00-026-2121 is 5310

Does the NSN 5310-00-026-2121 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-026-2121 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 5310-00-026-2121 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-026-2121 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 5310-00-026-2121 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Tue, Oct 24, 1972