5310-00-187-3178

Find complete technical information, availability, and procurement data for: 5310-00-187-3178
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-187-3178

Item Name Code

14218

Assigment Date

01/01/1963 (63 years ago)

A washer, usually round, with a centrally-located hole. Its edges and two bearing surfaces are designed in such a way that applied pressure brings into play the spring tension and/or frictional locking principle that materially resists any tendency toward turning. It may be made of one or two pieces.

steel comp 1060 or steel comp 1561 or steel comp 1064 or steel comp 1065 or steel comp 1566 or steel comp 1069 or steel comp 1070 or steel comp 1071 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080 overall material, 0.255 inches minimum and 0.263 inches maximum hole diameter, 0.084 inches minimum and 0.094 inches maximum material thickness, 45.0 rockwell c minimum and 53.0 rockwell c maximum hardness rating, 0.535 inches maximum outside 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: 0.255 inches minimum and 0.263 inches maximum
Outside Diameter: 0.535 inches maximum
Material Thickness: 0.084 inches minimum and 0.094 inches maximum
Hardness Rating: 45.0 rockwell c minimum and 53.0 rockwell c maximum
Material: steel comp 1060 or steel comp 1561 or steel comp 1064 or steel comp 1065 or steel comp 1566 or steel comp 1069 or steel comp 1070 or steel comp 1071 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080 overall
Style Designator: split helical-right hand
Nondefinitive Spec/Std Data: 4 style and a class

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
MS35340-6	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-187-3178?

The FSCG of the NSN 5310-00-187-3178 is 5310

Does the NSN 5310-00-187-3178 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-187-3178 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 5310-00-187-3178 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-187-3178 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 5310-00-187-3178 was assigned to the Federal Catalog?

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