MS51973-29

View detailed technical data, stock status, and sourcing information for: MS51973-29
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-226-6956

Item Name Code

06672

Assigment Date

01/01/1963 (63 years ago)

0.240 inches minimum and 0.260 inches maximum thread length, 3a thread class, 0.240 inches minimum and 0.260 inches maximum fastener length, headless (setscrew) head style, right-hand thread direction

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: 0.240 inches minimum and 0.260 inches maximum
Fastener Length: 0.240 inches minimum and 0.260 inches maximum
Head Style: headless (setscrew)
Point Style: cone
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.164 inches
Width Across Flats: 0.078 inches nominal
Thread Quantity Per Inch: 32
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: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-051-4504	No Name Available	06/29/1966
5305-00-249-0415	No Name Available	12/01/1982
5305-00-282-7636	No Name Available	08/01/1979
5305-00-537-8538	No Name Available	09/17/2009

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
5305002266956	Setscrew
MS51973-29	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-00-226-6956?

The FSCG of the NSN 5305-00-226-6956 is 5305

Does the NSN 5305-00-226-6956 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-226-6956 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 5305-00-226-6956 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-226-6956 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 5305-00-226-6956 was assigned to the Federal Catalog?

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