5310-01-273-2287

Find complete technical information, availability, and procurement data for: 5310-01-273-2287
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-273-2287

Item Name Code

15893

Assigment Date

02/22/1988 (38 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.

3b thread class, right-hand thread direction, unjf thread series, 24 thread quantity per inch, 450.0 fahrenheit nominal temp rating

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 24
Hardness Rating: 38.0 rockwell c minimum and 46.0 rockwell c maximum
Nominal Thread Size: 0.375 inches
Material: steel comp 8740 overall
Material Document And Classification: ams 6322 assn std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 2 fed spec single treatment response overall

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
77377-6	Spline Self-Locking Nut
C7530-6	Spline Self-Locking Nut
LH11922-6	Spline Self-Locking Nut
MN23-6	Spline Self-Locking Nut
RMLH11922-6	Spline Self-Locking Nut
SP50324-6	Spline Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-273-2287?

The FSCG of the NSN 5310-01-273-2287 is 5310

Does the NSN 5310-01-273-2287 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-273-2287 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 5310-01-273-2287 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-273-2287 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 5310-01-273-2287 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Mon, Feb 22, 1988