B1821BH025C138L

View detailed technical data, stock status, and sourcing information for: B1821BH025C138L
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-203-6433

Item Name Code

01847

Assigment Date

03/16/1985 (41 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

hexagon head style, 2a thread class, right-hand thread direction, 0.750 inches minimum thread length, 1.313 inches minimum and 1.375 inches maximum fastener 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: 0.750 inches minimum
Fastener Length: 1.313 inches minimum and 1.375 inches maximum
Head Style: hexagon
Head Height: 0.150 inches minimum and 0.163 inches maximum
Width Between Flats: 0.4280 inches minimum and 0.4375 inches maximum
Locking Feature: patch or strip threads
Nominal Thread Diameter: 0.250 inches
Features Provided: finished head
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 2.0 rockwell c minimum and 38.0 rockwell c maximum fastener
Special Features: locking feature material epoxy plastic
Material: plastic polyamide (nylon) locking feature
Material: steel fastener
Material: steel overall
Material Document And Classification: sae j429,grade 8 assn std single material response or astm a354,grade bd assn std single material response fastener
Surface Treatment: zinc and chromate fastener
Surface Treatment Document And Classification: astm b633 ty 2 sc 3 assn std single treatment response fastener
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
AEB02C250A37AW9A96	Machine Bolt
B1821BH025C138L	Machine Bolt
MS90728-11L	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-203-6433?

The FSCG of the NSN 5306-01-203-6433 is 5306

Does the NSN 5306-01-203-6433 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-203-6433 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 5306-01-203-6433 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-203-6433 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 5306-01-203-6433 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Sat, Mar 16, 1985