S8157N54-032

View detailed technical data, stock status, and sourcing information for: S8157N54-032
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-662-0187

Item Name Code

13393

Assigment Date

01/01/1961 (65 years ago)

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

rectangular cross-sectional shape style, 0.032 inches nominal thickness, 0.315 inches minimum and 0.321 inches maximum hole diameter, round center hole shape style, 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: 0.315 inches minimum and 0.321 inches maximum
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.032 inches nominal
Overall Diameter: 0.490 inches minimum and 0.510 inches maximum
Material: steel comp 301 or steel comp 302 or steel comp 303 or steel comp 316 or steel comp 321 overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-139-7053	No Name Available	10/01/1982

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
S8157N54-032	Flat Washer
S8157N54-032G	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-662-0187?

The FSCG of the NSN 5310-00-662-0187 is 5310

Does the NSN 5310-00-662-0187 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-662-0187 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 5310-00-662-0187 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-662-0187 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 5310-00-662-0187 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961