B1821BH100C550N

View detailed technical data, stock status, and sourcing information for: B1821BH100C550N
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-990-8407

Item Name Code

18257

Assigment Date

03/28/1967 (59 years ago)

hexagon head style, 5.312 inches minimum and 5.500 inches maximum fastener length, 2a thread class, 2.250 inches minimum and 2.438 inches maximum thread length, 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: 2.250 inches minimum and 2.438 inches maximum
Fastener Length: 5.312 inches minimum and 5.500 inches maximum
Head Style: hexagon
Head Height: 0.591 inches minimum and 0.627 inches maximum
Width Between Flats: 1.469 inches minimum and 1.500 inches maximum
Nominal Thread Diameter: 1.000 inches
Thread Quantity Per Inch: 8
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 33.0 rockwell c minimum and 39.0 rockwell c maximum overall
Material: steel overall
Material Document And Classification: aej429 grade 8 assn std 15th 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

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
5315-844	Hexagon Head Cap Screw
6693384-133	Hexagon Head Cap Screw
6KP109	Hexagon Head Cap Screw
7-115-264450	Hexagon Head Cap Screw
B1821BH100C550N	Hexagon Head Cap Screw
MS90728-243	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-990-8407?

The FSCG of the NSN 5305-00-990-8407 is 5305

Does the NSN 5305-00-990-8407 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-990-8407 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 5305-00-990-8407 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-990-8407 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 5305-00-990-8407 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Tue, Mar 28, 1967