3231N

View detailed technical data, stock status, and sourcing information for: 3231N

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3231N
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-275-1329
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.

round center hole shape style, 0.375 inches nominal hole diameter, 0.062 inches nominal thickness, round peripheral shape style, rectangular cross-sectional 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
0.375 inches nominal
Peripheral Shape Style
round
Center Hole Shape Style
round
Thickness
0.062 inches nominal
Overall Diameter
0.875 inches nominal
Material
steel overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5310-00-262-9785 No Name Available 01/01/1963

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
3231N Flat Washer
4B5270 Flat Washer
E3735 Flat Washer
HL3839PC13 Flat Washer
HL3883PC13 Flat Washer
HL4437PC13 Flat Washer
HL4444PC13 Flat Washer
HL4560PC13 Flat Washer
HL4567PC13 Flat Washer
HL4706PC13 Flat Washer
HL4707PC13 Flat Washer
HL4714PC13 Flat Washer
HL4877PC13 Flat Washer
HL4884PC13 Flat Washer
HL5525PC13 Flat Washer
HL5533PC13 Flat Washer
HL6066PC13 Flat Washer
HL6074PC13 Flat Washer
HL6181PC13 Flat Washer
HL6189PC13 Flat Washer
HL7111PC13 Flat Washer
HL7119PC13 Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-275-1329?
The FSCG of the NSN 5310-00-275-1329 is 5310
Does the NSN 5310-00-275-1329 have a Schedule B code assigned?
Yes, the Schedule B code is 7318220000
Does NSN 5310-00-275-1329 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 5310-00-275-1329 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-275-1329 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 5310-00-275-1329 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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