A7-57

View detailed technical data, stock status, and sourcing information for: A7-57
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-932-5597

Item Name Code

14218

Assigment Date

02/20/1967 (59 years ago)

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing,ball,duplex. Excludes:bearing,ball,airframe.

0.155 inches maximum outside diameter, 0.075 inches minimum hole diameter, 0.015 inches minimum material thickness, steel comp 316l overall material, -ams 5507 assn std single material response overall material document and classification

Product Characteristics

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

Hole Diameter: 0.075 inches minimum
Outside Diameter: 0.155 inches maximum
Material Thickness: 0.015 inches minimum
Material: steel comp 316l overall
Material Document And Classification: -ams 5507 assn std single material response overall
Style Designator: split helical-right hand

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
A7-57	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-932-5597?

The FSCG of the NSN 5310-00-932-5597 is 5310

Does the NSN 5310-00-932-5597 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-932-5597 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 5310-00-932-5597 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-932-5597 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 5310-00-932-5597 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Mon, Feb 20, 1967