5310-01-186-8641

Find complete technical information, availability, and procurement data for: 5310-01-186-8641
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-186-8641

Item Name Code

29727

Assigment Date

08/16/1984 (41 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.

prevailing torque all metal design locking feature, cone seat, hexagon nut style, right-hand thread direction, 0.212 inches minimum and 0.226 inches maximum nut height, 2b thread class

Product Characteristics

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

Thread Class: 2b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Nut Style: cone seat, hexagon
Nut Height: 0.212 inches minimum and 0.226 inches maximum
Width Across Flats: 0.4280 inches minimum and 0.4385 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Cone Seat Angle: 80.0 degrees minimum and 100.0 degrees maximum
Material: steel overall
Material Document And Classification: gm 301-m,fscm 11862 mfr ref single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: gm 4341-m,code 20u32,fscm 11862 mfr ref 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
9422274	Nut,self-Locking,cone Seat,hexag
9422294	Nut,self-Locking,cone Seat,hexag

FAQs

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

What is the FSCG of the NSN 5310-01-186-8641?

The FSCG of the NSN 5310-01-186-8641 is 5310

Does the NSN 5310-01-186-8641 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-186-8641 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 5310-01-186-8641 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-186-8641 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 5310-01-186-8641 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Thu, Aug 16, 1984