5305-00-761-4227

Find complete technical information, availability, and procurement data for: 5305-00-761-4227
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-761-4227

Item Name Code

18257

Assigment Date

01/01/1960 (66 years ago)

1.250 inches maximum thread length, 1.250 inches nominal fastener length, hexagon head style, right-hand thread direction, 2a 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: 2a
Thread Direction: right-hand
Thread Length: 1.250 inches maximum
Fastener Length: 1.250 inches nominal
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.736 inches minimum and 0.750 inches maximum
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 120000 pounds per square inch
Hardness Rating: 23.0 rockwell c minimum and 32.0 rockwell c maximum overall
Minimum Yield Strength: 85000 pounds per square inch
Material: steel overall
Material Document And Classification: sae gr 5 assn std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response 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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-00-012-0650	No Name Available	09/01/1983
5305-00-021-5735	No Name Available	09/01/1979
5305-00-042-8121	No Name Available	07/01/1979
5305-00-069-1088	No Name Available	09/01/1967
5305-00-367-1878	No Name Available	06/23/1971

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
13218E0528-722	Hexagon Head Cap Screw
251589	Hexagon Head Cap Screw
5305007614227	Hexagon Head Cap Screw
5305PL0846124	Hexagon Head Cap Screw
640275	Hexagon Head Cap Screw
70008-111	Hexagon Head Cap Screw
91AX42	Hexagon Head Cap Screw
K-500-CH-0311	Hexagon Head Cap Screw
NASM90726-111	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-761-4227?

The FSCG of the NSN 5305-00-761-4227 is 5305

Does the NSN 5305-00-761-4227 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-761-4227 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 5305-00-761-4227 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-761-4227 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 5305-00-761-4227 was assigned to the Federal Catalog?

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