1958-C-18

View detailed technical data, stock status, and sourcing information for: 1958-C-18
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-112-6657

Item Name Code

15934

Assigment Date

05/08/1981 (45 years ago)

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

0.089 inches minimum and 0.090 inches maximum material thickness, 2.869 inches minimum and 2.871 inches maximum outside diameter, 2.252 inches minimum and 2.253 inches maximum shoulder diameter, 0.455 inches minimum and 0.465 inches maximum shoulder height, 2.110 inches minimum and 2.112 inches maximum hole diameter

Product Characteristics

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

Hole Diameter: 2.110 inches minimum and 2.112 inches maximum
Shoulder Diameter: 2.252 inches minimum and 2.253 inches maximum
Outside Diameter: 2.869 inches minimum and 2.871 inches maximum
Shoulder Height: 0.455 inches minimum and 0.465 inches maximum
Material Thickness: 0.089 inches minimum and 0.090 inches maximum
Surface Finish: 63.0 microinches top
Material: copper overall
Material Document And Classification: qq-c-530,cond at fed spec all material responses overall
Style Designator: shouldered

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
10122170	Shouldered Washer
1958-C-18	Shouldered Washer
74A450631-2001	Shouldered Washer

FAQs

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

What is the FSCG of the NSN 5310-01-112-6657?

The FSCG of the NSN 5310-01-112-6657 is 5310

Does the NSN 5310-01-112-6657 have a Schedule B code assigned?

Yes, the Schedule B code is 7415210000

Does NSN 5310-01-112-6657 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 5310-01-112-6657 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-112-6657 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 5310-01-112-6657 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Fri, May 8, 1981