440975PC1

View detailed technical data, stock status, and sourcing information for: 440975PC1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-153-2832

Item Name Code

14218

Assigment Date

01/01/1963 (63 years ago)

A washer, usually round, with a centrally-located hole. Its edges and two bearing surfaces are designed in such a way that applied pressure brings into play the spring tension and/or frictional locking principle that materially resists any tendency toward turning. It may be made of one or two pieces.

30.0 rockwell c minimum and 35.0 rockwell c maximum hardness rating, 0.050 inches nominal material thickness, 31 tooth serrations 0.018 in. deep special features, 0.414 inches nominal outside diameter, 0.281 inches nominal hole diameter

Product Characteristics

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

Hole Diameter: 0.281 inches nominal
Outside Diameter: 0.414 inches nominal
Material Thickness: 0.050 inches nominal
Hardness Rating: 30.0 rockwell c minimum and 35.0 rockwell c maximum
Special Features: 31 tooth serrations 0.018 in. deep
Material: steel comp 1074 overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: qq-z-325, cl2, ty2 fed spec single treatment response overall
Style Designator: serrated and shouldered

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
440975PC1	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-153-2832?

The FSCG of the NSN 5310-00-153-2832 is 5310

Does the NSN 5310-00-153-2832 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-153-2832 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 5310-00-153-2832 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-153-2832 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 5310-00-153-2832 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963