NASM21045C8S

View detailed technical data, stock status, and sourcing information for: NASM21045C8S
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part NASM21045C8S to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-338-8183

Item Name Code

29725

Assigment Date

05/12/1991 (35 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, castellated, hexagon nut style, 0.575 inches minimum and 0.610 inches maximum nut height

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
Nut Style: castellated, hexagon
Nut Height: 0.575 inches minimum and 0.610 inches maximum
Width Across Flats: 0.741 inches minimum and 0.752 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.500 inches
Countersink Angle: 88.0 degrees nominal first end
Bearing Surface Type: chamfered or washer faced
Material: steel corrosion resisting overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 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
164-1041-11	Nut,self-Locking,castellated,hex
MS21045C8S	Nut,self-Locking,castellated,hex
NASM21045C8S	Nut,self-Locking,castellated,hex

FAQs

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

What is the FSCG of the NSN 5310-01-338-8183?

The FSCG of the NSN 5310-01-338-8183 is 5310

Does the NSN 5310-01-338-8183 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-338-8183 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 5310-01-338-8183 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-338-8183 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 5310-01-338-8183 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sun, May 12, 1991