B1821BH050C350L

View detailed technical data, stock status, and sourcing information for: B1821BH050C350L
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-415-8870

Item Name Code

18257

Assigment Date

07/09/1995 (31 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

0.302 inches minimum and 0.323 inches maximum head height, 2a thread class, 0.7360 inches minimum and 0.7500 inches maximum width between flats, hexagon head style, 3.500 inches nominal 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
Fastener Length: 3.500 inches nominal
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.7360 inches minimum and 0.7500 inches maximum
Locking Feature: patch or strip threads
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 13
Material: plastic polyamide (nylon) locking feature
Material: steel overall
Material Document And Classification: saej429 gr 8 assn std single material response overall
Surface Treatment: zinc 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
B1821BH050C350L	Hexagon Head Cap Screw
MS90728-121L	Hexagon Head Cap Screw
SF11062 ITEM 25	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-415-8870?

The FSCG of the NSN 5305-01-415-8870 is 5305

Does the NSN 5305-01-415-8870 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-415-8870 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 5305-01-415-8870 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-415-8870 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 5305-01-415-8870 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Sun, Jul 9, 1995