B1821BH056F150N

View detailed technical data, stock status, and sourcing information for: B1821BH056F150N
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-725-0135

Item Name Code

18257

Assigment Date

01/01/1961 (65 years ago)

1.500 inches maximum thread length, 1.500 inches nominal fastener length, 2a thread class, hexagon 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: 2a
Thread Direction: right-hand
Thread Length: 1.500 inches maximum
Fastener Length: 1.500 inches nominal
Head Style: hexagon
Head Height: 0.348 inches minimum and 0.371 inches maximum
Width Between Flats: 0.798 inches minimum and 0.812 inches maximum
Nominal Thread Diameter: 0.562 inches
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Minimum Yield Strength: 120000 pounds per square inch
Material: steel overall
Material Document And Classification: sae gr 8 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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-00-021-5901	No Name Available	10/21/1998
5305-01-255-4964	No Name Available	07/01/1991
5305-01-260-9839	No Name Available	12/01/1990

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
1876HX1	Hexagon Head Cap Screw
18C924	Hexagon Head Cap Screw
B1821BH056F150N	Hexagon Head Cap Screw
MS90727-138	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-725-0135?

The FSCG of the NSN 5305-00-725-0135 is 5305

Does the NSN 5305-00-725-0135 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-725-0135 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 5305-00-725-0135 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-725-0135 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 5305-00-725-0135 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961