B1821BH038F500N

View detailed technical data, stock status, and sourcing information for: B1821BH038F500N
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-457-5167

Item Name Code

18257

Assigment Date

07/25/1998 (28 years ago)

"a device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes:circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller."

5.000 inches nominal fastener length, 2a thread class, 1.000 inches nominal thread length, right-hand thread direction, hexagon head style

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: 1.000 inches nominal
Fastener Length: 5.000 inches nominal
Head Style: hexagon
Head Height: 0.226 inches minimum and 0.243 inches maximum
Width Between Flats: 0.551 inches minimum and 0.562 inches maximum
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Material: steel overall
Material Document And Classification: astm,a354,gr8 assn std single material response overall
Surface Treatment: chromate zinc overall
Surface Treatment Document And Classification: astm,b633 assn std single treatment response overall
Thread Series Designator: unf

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
B1821BH038F500N	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-457-5167?

The FSCG of the NSN 5305-01-457-5167 is 5305

Does the NSN 5305-01-457-5167 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-457-5167 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 5305-01-457-5167 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-457-5167 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 5305-01-457-5167 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Sat, Jul 25, 1998