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5310-00-281-8319

Find complete technical information, availability, and procurement data for: 5310-00-281-8319

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5310-00-281-8319
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-281-8319
Item Name Code
13393
Assigment Date
01/01/1961 (65 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

rectangular cross-sectional shape style, 1.391 inches nominal hole diameter, round center hole shape style, 0.09375 inches nominal thickness, round peripheral shape style

Product Characteristics

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

Cross-Sectional Shape Style
rectangular
Hole Diameter
1.391 inches nominal
Peripheral Shape Style
round
Center Hole Shape Style
round
Thickness
0.09375 inches nominal
Overall Diameter
1.875 inches nominal
Features Provided
casehardened
Hardness Rating
56.2 rockwell b nominal
Material
steel comp 1010 overall
Material Document And Classification
qq-s-633-canceled fed spec single material response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5310-00-262-4733 No Name Available 10/01/1975
3120-00-383-9687 No Name Available 10/01/1975
5310-00-499-0561 No Name Available 10/01/1975
5310-00-741-0314 No Name Available 10/01/1975

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
27088H Flat Washer
797061 Flat Washer
7979061 Flat Washer
T2996 Flat Washer
T69-137 Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-281-8319?
The FSCG of the NSN 5310-00-281-8319 is 5310
Does the NSN 5310-00-281-8319 have a Schedule B code assigned?
Yes, the Schedule B code is 7318220000
Does NSN 5310-00-281-8319 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 5310-00-281-8319 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-281-8319 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 5310-00-281-8319 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961

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