021-16655B052

View detailed technical data, stock status, and sourcing information for: 021-16655B052
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5307 Studs

National Stock Number

5307-01-413-0321

Item Name Code

15948

Assigment Date

05/04/1995 (31 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.

6.625 inches nominal overall length, 9 stud thread thread quantity per inch, right-hand nut thread thread direction, right-hand stud thread thread direction, 9 nut thread thread quantity per inch

Product Characteristics

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

Thread Direction: right-hand nut thread
Thread Direction: right-hand stud thread
Overall Length: 6.625 inches nominal
Thread Quantity Per Inch: 9 nut thread
Thread Quantity Per Inch: 9 stud thread
Nominal Thread Size: 0.875 inches nut thread
Nominal Thread Size: 0.875 inches stud thread
Material: cobalt alloy
Material Document And Classification: qq-c-00465 c61400 fed spec single material response
Thread Series Designator: unc nut thread
Thread Series Designator: unc stud thread

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
021-16655B052	Plain Stud
121-16655-052	Plain Stud

FAQs

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

What is the FSCG of the NSN 5307-01-413-0321?

The FSCG of the NSN 5307-01-413-0321 is 5307

Does NSN 5307-01-413-0321 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 5307-01-413-0321 contain precious materials?

Item does not contain precious metal.

Does NSN 5307-01-413-0321 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 5307-01-413-0321 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Thu, May 4, 1995