257-7-10

View detailed technical data, stock status, and sourcing information for: 257-7-10
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-821-5673

Item Name Code

11444

Assigment Date

01/01/1962 (64 years ago)

A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes:laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes:disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.

0.438-14 nc-3a insert size, passivate overall surface treatment, 0.052 inches nominal top portion unthreaded outside length, 0.625 inches nominal length, keylock style designator

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Length: 0.625 inches nominal
Insert Size: 0.438-14 nc-3a
Top Portion Unthreaded Outside Length: 0.052 inches nominal
Surface Treatment: passivate overall
Style Designator: keylock

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
257-7-10	Screw Thread Insert
933B-5SE0625	Screw Thread Insert
99-3562	Screw Thread Insert

FAQs

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

What is the FSCG of the NSN 5325-00-821-5673?

The FSCG of the NSN 5325-00-821-5673 is 5325

Does the NSN 5325-00-821-5673 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-821-5673 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 5325-00-821-5673 contain precious materials?

Precious metal content is unknown

Does NSN 5325-00-821-5673 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 5325-00-821-5673 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962