A671-3

View detailed technical data, stock status, and sourcing information for: A671-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-042-4229

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.

0.867 inches minimum and 0.900 inches maximum outside diameter, 0.512 inches minimum and 0.530 inches maximum hole diameter, qq-b-746 fed spec single material response overall material document and classification, copper alloy overall material, 0.037 inches minimum and 0.045 inches maximum 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: 0.512 inches minimum and 0.530 inches maximum
Outside Diameter: 0.867 inches minimum and 0.900 inches maximum
Material Thickness: 0.037 inches minimum and 0.045 inches maximum
Material: copper alloy overall
Material Document And Classification: qq-b-746 fed spec single material response overall
Style Designator: flat internal teeth
Nondefinitive Spec/Std Data: a type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-042-4240	No Name Available	04/01/1980
5310-00-685-8101	No Name Available	01/01/1983
5310-00-757-8022	No Name Available	02/11/1972

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
13230E6743-113	Lock Washer
424229	Lock Washer
851-0020	Lock Washer
A671-3	Lock Washer
MS35333-113	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-042-4229?

The FSCG of the NSN 5310-00-042-4229 is 5310

Does the NSN 5310-00-042-4229 have a Schedule B code assigned?

Yes, the Schedule B code is 7415210000

Does NSN 5310-00-042-4229 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 5310-00-042-4229 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-042-4229 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 5310-00-042-4229 was assigned to the Federal Catalog?

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