5310-01-187-1921

Find complete technical information, availability, and procurement data for: 5310-01-187-1921
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-187-1921

Item Name Code

01857

Assigment Date

08/21/1984 (42 years ago)

An internally threaded nut which has an internal seat or shoulder designed to engage the nut retaining flange of a union tailpiece. The threaded portion is used to engage the thread piece of a union, union elbor or the like. Excludes:nut (1), tube coupling.

right-hand thread direction, 1.840 inches minimum and 2.016 inches maximum nut height, 2b thread class, 2.109 inches minimum and 2.156 inches maximum width across flats, hexagon 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: hexagon
Nut Height: 1.840 inches minimum and 2.016 inches maximum
Width Across Flats: 2.109 inches minimum and 2.156 inches maximum
Thread Quantity Per Inch: 8
Nominal Thread Size: 2.000 inches
Criticality Code Justification: zzzy
Bearing Surface Type: flat
Material: steel overall
Reference Number Differentiating Characteristics: material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications

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
4903 F PC 4	Hexagon Plain Nut
4903-F-4	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-187-1921?

The FSCG of the NSN 5310-01-187-1921 is 5310

Does the NSN 5310-01-187-1921 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-187-1921 require demilitarization?

Usml or ccl military items - demil required. Item managers,, equipment specialists, or product specialists must furnish special demilinstructions. (note 3).

Does NSN 5310-01-187-1921 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-187-1921 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 5310-01-187-1921 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Aug 21, 1984