203M0012P003

View detailed technical data, stock status, and sourcing information for: 203M0012P003
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-650-1953

Item Name Code

15893

Assigment Date

01/01/1963 (63 years ago)

right-hand thread direction, prevailing torque with nonmetallic insert locking feature, 0.189 inches nominal pilot diameter, 3b thread class, 0.105 inches nominal pilot length

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque with nonmetallic insert
Pilot Diameter: 0.189 inches nominal
Pilot Length: 0.105 inches nominal
Nut Height: 0.246 inches nominal
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unc
Thread Quantity Per Inch: 40
Nominal Thread Size: 0.112 inches
Material: steel comp 303 or steel comp 303se or steel comp 303 plus x overall
Material Document And Classification: ams 5640 assn std all material responses 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-836-3593	No Name Available	01/01/1962

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
203M0012P003	Spline Self-Locking Nut
503M0012P003	Spline Self-Locking Nut
79NC3-40	Spline Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-650-1953?

The FSCG of the NSN 5310-00-650-1953 is 5310

Does the NSN 5310-00-650-1953 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-650-1953 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 5310-00-650-1953 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-650-1953 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 5310-00-650-1953 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963