4HB545

View detailed technical data, stock status, and sourcing information for: 4HB545
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-051-9649

Item Name Code

14218

Assigment Date

12/08/1977 (48 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.

0.250 inches nominal hole diameter, cadmium overall surface treatment, 0.500 inches nominal outside diameter, steel overall material, 0.062 inches nominal material thickness

Product Characteristics

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

Hole Diameter: 0.250 inches nominal
Outside Diameter: 0.500 inches nominal
Material Thickness: 0.062 inches nominal
Material: steel overall
Surface Treatment: cadmium overall
Style Designator: split helical-right hand

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-166-8565	No Name Available	03/01/1985

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
4HB545	Lock Washer
9Q5845	Lock Washer
WD130-MS	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-01-051-9649?

The FSCG of the NSN 5310-01-051-9649 is 5310

Does the NSN 5310-01-051-9649 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-01-051-9649 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 5310-01-051-9649 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-051-9649 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 5310-01-051-9649 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Thu, Dec 8, 1977