5305-01-274-7958

Find complete technical information, availability, and procurement data for: 5305-01-274-7958
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-274-7958

Item Name Code

18257

Assigment Date

03/13/1988 (38 years ago)

Two or more sizes and/or types of gaskets grouped together in a single package and intended for individual repeated replacement and/or general use. See also gasket set.

hexagon head style, 2a thread class, 2.420 inches minimum and 2.560 inches maximum fastener length, right-hand thread direction, 1.500 inches minimum 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: 2a
Thread Direction: right-hand
Thread Length: 1.500 inches minimum
Fastener Length: 2.420 inches minimum and 2.560 inches maximum
Head Style: hexagon
Head Height: 0.378 inches minimum and 0.444 inches maximum
Width Between Flats: 0.906 inches minimum and 0.928 inches maximum
Nominal Thread Diameter: 0.625 inches
Thread Quantity Per Inch: 11
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 25.0 rockwell c minimum and 34.0 rockwell c maximum overall
Minimum Yield Strength: 105000 pounds per square inch
Material: steel comp 4140 or steel comp 4142 or steel comp 4145 overall
Material Document And Classification: astm a193 assn std all material responses overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 1 type and b7 grade

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
207-6015504 ITEM 25	Hexagon Head Cap Screw
6502476	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-274-7958?

The FSCG of the NSN 5305-01-274-7958 is 5305

Does the NSN 5305-01-274-7958 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-274-7958 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 5305-01-274-7958 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-274-7958 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 5305-01-274-7958 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sun, Mar 13, 1988