218506

View detailed technical data, stock status, and sourcing information for: 218506
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-021-8506

Item Name Code

01859

Assigment Date

01/01/1963 (63 years ago)

A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes:nut (1), plain, castellated, hexagon.

1.938 inches minimum and 2.000 inches maximum width across flats, slotted, hexagon nut style, 2b thread class, 1.187 inches minimum and 1.251 inches maximum nut height, 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: 2b
Thread Direction: right-hand
Nut Style: slotted, hexagon
Nut Height: 1.187 inches minimum and 1.251 inches maximum
Width Across Flats: 1.938 inches minimum and 2.000 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 7
Nominal Thread Size: 1.250 inches
Bearing Surface Type: chamfered or washer faced
Material: steel overall
Material Document And Classification: qq-s-633-canc fed spec single material response overall

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
218506	Nut,plain,slotted,hexagon

FAQs

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

What is the FSCG of the NSN 5310-00-021-8506?

The FSCG of the NSN 5310-00-021-8506 is 5310

Does the NSN 5310-00-021-8506 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-021-8506 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 5310-00-021-8506 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-021-8506 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 5310-00-021-8506 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963