203MS050P021

View detailed technical data, stock status, and sourcing information for: 203MS050P021
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-050-2159

Item Name Code

01857

Assigment Date

01/01/1961 (65 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

0.375 inches nominal width across flats, 0.115 inches nominal nut height, right-hand thread direction, 2b thread class, 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: 0.115 inches nominal
Width Across Flats: 0.375 inches nominal
Thread Series: unf
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Bearing Surface Type: washer faced
Material: steel corrosion resisting overall
Material Document And Classification: qq-s-763 fed spec single material response overall
Surface Treatment: passivate overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-913-0706	No Name Available	06/04/2008
5310-01-023-3808	No Name Available	06/04/2008

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
203MS050P021	Hexagon Plain Nut
203MT051P021	Hexagon Plain Nut
2074176-3407	Hexagon Plain Nut
4912542-00	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-050-2159?

The FSCG of the NSN 5310-00-050-2159 is 5310

Does the NSN 5310-00-050-2159 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-050-2159 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 5310-00-050-2159 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-050-2159 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 5310-00-050-2159 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961