5310-01-266-6445

Find complete technical information, availability, and procurement data for: 5310-01-266-6445
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-266-6445

Item Name Code

29729

Assigment Date

10/29/1987 (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.

prevailing torque all metal design locking feature, right-hand thread direction, 3b thread class, 1.156 inches maximum overall height, 1.625 inches maximum washer outside diameter

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
Locking Feature: prevailing torque all metal design
Washer Outside Diameter: 1.625 inches maximum
Overall Height: 1.156 inches maximum
Nut Style: double hexagon
Washer Thickness: 0.343 inches maximum
Width Across Flats: 1.178 inches minimum and 1.190 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.000 inches
Material: iron alloy 660 overall
Material Document And Classification: ams 5732 assn std 1st material response or ams 5737 assn std 2nd material response overall
Precious Material And Location: external surfaces silver
Precious Material: silver
Surface Treatment: silver overall
Surface Treatment Document And Classification: ams 2410 assn std single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-01-088-5820	No Name Available	12/01/1991

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
33A7-162	Extended Washer Self-Locking Nut
33A7162	Extended Washer Self-Locking Nut
42FW1612	Extended Washer Self-Locking Nut
5310PL0716972	Extended Washer Self-Locking Nut
5310PL1443431	Extended Washer Self-Locking Nut
57562-1612	Extended Washer Self-Locking Nut
57562A1612	Extended Washer Self-Locking Nut
VN465C162	Extended Washer Self-Locking Nut
ZEB1845-162	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-266-6445?

The FSCG of the NSN 5310-01-266-6445 is 5310

Does the NSN 5310-01-266-6445 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-266-6445 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 5310-01-266-6445 contain precious materials?

Item contains silver.

Does NSN 5310-01-266-6445 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 5310-01-266-6445 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Oct 29, 1987