5310-00-138-4541

Find complete technical information, availability, and procurement data for: 5310-00-138-4541
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-138-4541

Item Name Code

01869

Assigment Date

08/09/1971 (54 years ago)

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes:thrust type washer.

35.0 rockwell c minimum and 39.0 rockwell c maximum hardness rating, 1.310 inches minimum and 1.330 inches maximum outside diameter, 0.148 inches nominal internal prebent key width, 0.060 inches nominal material thickness, 0.881 inches minimum and 0.891 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: 0.881 inches minimum and 0.891 inches maximum
Outside Diameter: 1.310 inches minimum and 1.330 inches maximum
Internal Prebent Key Width: 0.148 inches nominal
Material Thickness: 0.060 inches nominal
Hardness Rating: 35.0 rockwell c minimum and 39.0 rockwell c maximum
Wire Hole Diameter: 0.062 inches nominal
Special Features: 4 equally spaced radial projections on facial surface,with 0.047 in. radii,key not pre-bent
Material: steel comp 4130 overall
Material Document And Classification: mil-s-18729 mil spec single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 fed spec single treatment response overall
Style Designator: internal prebent key

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
9M383-14	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-00-138-4541?

The FSCG of the NSN 5310-00-138-4541 is 5310

Does the NSN 5310-00-138-4541 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-138-4541 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 5310-00-138-4541 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-138-4541 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 5310-00-138-4541 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Mon, Aug 9, 1971