MS51974-57

View detailed technical data, stock status, and sourcing information for: MS51974-57
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-716-8016

Item Name Code

06672

Assigment Date

01/01/1960 (66 years ago)

headless (setscrew) head style, right-hand thread direction, 3a thread class, 0.490 inches minimum and 0.510 inches maximum fastener length, 0.490 inches minimum and 0.510 inches maximum thread 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: 3a
Thread Direction: right-hand
Thread Length: 0.490 inches minimum and 0.510 inches maximum
Fastener Length: 0.490 inches minimum and 0.510 inches maximum
Head Style: headless (setscrew)
Point Style: cone
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Width Across Flats: 0.156 inches nominal
Thread Quantity Per Inch: 24
Hardness Rating: 45.0 rockwell c minimum and 53.0 rockwell c maximum overall
Material: steel comp 4032 or steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740 overall
Material Document And Classification: aisi assn std all material responses overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec all treatment responses overall
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-285-4605	No Name Available	08/01/1980

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
MS51974-57	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-00-716-8016?

The FSCG of the NSN 5305-00-716-8016 is 5305

Does the NSN 5305-00-716-8016 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-716-8016 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 5305-00-716-8016 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-716-8016 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 5305-00-716-8016 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960