5187657

View detailed technical data, stock status, and sourcing information for: 5187657
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-171-4377

Item Name Code

15886

Assigment Date

02/07/1984 (42 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, knurled nut style, 1.375 inches nominal nut diameter, right-hand thread direction, 1.250 inches nominal overall counterbore 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
Counterbore Diameter: 1.250 inches nominal overall
Nut Style: knurled
Nut Diameter: 1.375 inches nominal
Nut Thickness: 1.500 inches nominal
Nut Counterbore Depth: 1.120 inches nominal overall
Thread Series: unf
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.000 inches
Material: steel corrosion resisting overall
Material Document And Classification: ams5640 class 303 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: mil-s-5002 mil 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
5187657	Knurled Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-171-4377?

The FSCG of the NSN 5310-01-171-4377 is 5310

Does the NSN 5310-01-171-4377 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-171-4377 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 5310-01-171-4377 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-171-4377 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 5310-01-171-4377 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Feb 7, 1984