W7955-1 1-4D28

View detailed technical data, stock status, and sourcing information for: W7955-1 1-4D28
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-039-5369

Item Name Code

13393

Assigment Date

01/01/1963 (63 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, round peripheral shape style, 0.029 inches minimum and 0.035 inches maximum thickness, 0.146 inches minimum and 0.152 inches maximum hole diameter, round center hole 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: 0.146 inches minimum and 0.152 inches maximum
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.029 inches minimum and 0.035 inches maximum
Overall Diameter: 0.240 inches minimum and 0.260 inches maximum
Material: steel comp 1010 overall
Material Document And Classification: ams 5042 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ams 2400 assn std single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5340-00-067-3501	No Name Available	05/20/1967
5310-00-395-2812	No Name Available	01/01/1983
5310-00-442-9956	No Name Available	12/01/1996
5310-00-551-4738	No Name Available	02/01/1983
5310-00-579-1412	No Name Available	09/01/2013
5310-00-596-5257	No Name Available	02/01/1983
5310-00-638-0224	No Name Available	05/21/1980

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
177038-162	Flat Washer
P11D5878	Flat Washer
W7955-1 1-4D28	Flat Washer
W7955-1.250D-28	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-039-5369?

The FSCG of the NSN 5310-00-039-5369 is 5310

Does the NSN 5310-00-039-5369 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-039-5369 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 5310-00-039-5369 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-039-5369 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 5310-00-039-5369 was assigned to the Federal Catalog?

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