5305-00-977-8827

Find complete technical information, availability, and procurement data for: 5305-00-977-8827
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-977-8827

Item Name Code

18257

Assigment Date

10/14/1966 (59 years ago)

6.000 inches nominal fastener length, hexagon head style, right-hand thread direction, 2.750 inches minimum and 3.105 inches maximum thread length, 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: 2.750 inches minimum and 3.105 inches maximum
Fastener Length: 6.000 inches nominal
Head Style: hexagon
Head Height: 0.749 inches minimum and 0.813 inches maximum
Width Between Flats: 1.812 inches minimum and 1.875 inches maximum
Nominal Thread Diameter: 1.250 inches
Thread Quantity Per Inch: 7
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 33.0 rockwell c minimum and 39.0 rockwell c maximum overall
Minimum Yield Strength: 120000 pounds per square inch
Material: steel overall
Material Document And Classification: saej429 grade 8 assn std single material response or astm a354 grade bd assn std single material response overall
Surface Treatment: zinc and chromate overall
Surface Treatment Document And Classification: astm b633 ty 2 sc 3 assn std single treatment response 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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-00-550-3938	No Name Available	09/01/2023
5305-00-906-9969	No Name Available	10/01/1990

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
7-118-304850	Hexagon Head Cap Screw
B1821BH125C600N	Hexagon Head Cap Screw
MS90728-283	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-977-8827?

The FSCG of the NSN 5305-00-977-8827 is 5305

Does the NSN 5305-00-977-8827 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-977-8827 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 5305-00-977-8827 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-977-8827 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 5305-00-977-8827 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Fri, Oct 14, 1966