5310-00-977-2778

Find complete technical information, availability, and procurement data for: 5310-00-977-2778
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-977-2778

Item Name Code

15887

Assigment Date

01/01/1962 (64 years ago)

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

2b thread class, right-hand thread direction, 1.373 inches nominal nut thickness, 2.501 inches nominal nut diameter, round nut style

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
Nut Style: round
Nut Diameter: 2.501 inches nominal
Nut Thickness: 1.373 inches nominal
Thread Series: un
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.875 inches
Special Features: reduce id one end 1.753 in. dia and one drilled hole 0.288 in. dia on one side and one tapped hole 1/4-28 thd on one side
Material: steel 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
121268	Round Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-977-2778?

The FSCG of the NSN 5310-00-977-2778 is 5310

Does the NSN 5310-00-977-2778 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-977-2778 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 5310-00-977-2778 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-977-2778 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 5310-00-977-2778 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962