5305-00-253-3638

Find complete technical information, availability, and procurement data for: 5305-00-253-3638
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-253-3638

Item Name Code

06672

Assigment Date

01/01/1963 (63 years ago)

headless (setscrew) head style, right-hand thread direction, 1.235 inches minimum and 1.265 inches maximum fastener length, 1.265 inches maximum thread length, 3a thread class

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: 1.265 inches maximum
Fastener Length: 1.235 inches minimum and 1.265 inches maximum
Head Style: headless (setscrew)
Point Style: cup
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Width Across Flats: 0.156 inches nominal
Thread Quantity Per Inch: 18
Hardness Rating: 45.0 rockwell c minimum and 53.0 rockwell c maximum overall
Material: steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740 overall
Material Document And Classification: 66 fed std all material responses overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 1 type and 4 style

FAQs

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

What is the FSCG of the NSN 5305-00-253-3638?

The FSCG of the NSN 5305-00-253-3638 is 5305

Does the NSN 5305-00-253-3638 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-253-3638 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 5305-00-253-3638 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-253-3638 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 5305-00-253-3638 was assigned to the Federal Catalog?

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