531014-7818

View detailed technical data, stock status, and sourcing information for: 531014-7818
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-721-7809

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.

0.193 inches minimum and 0.200 inches maximum hole diameter, steel comp 1060 or steel comp 1561 or steel comp 1064 or steel comp 1065 or steel comp 1566 or steel comp 1069 or steel comp 1070 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080 overall material, 2350-01-048-5920 end item identification, 0.068 inches minimum and 0.074 inches maximum material thickness, 0.434 inches maximum outside 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: 0.193 inches minimum and 0.200 inches maximum
Outside Diameter: 0.434 inches maximum
Material Thickness: 0.068 inches minimum and 0.074 inches maximum
End Item Identification: 2350-01-048-5920
Material: steel comp 1060 or steel comp 1561 or steel comp 1064 or steel comp 1065 or steel comp 1566 or steel comp 1069 or steel comp 1070 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Style Designator: split helical-right hand
Nondefinitive Spec/Std Data: 4 style and a class

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-012-2158	No Name Available	12/01/1979
5310-00-133-3637	No Name Available	12/17/1972
5310-01-629-8267	No Name Available	06/01/2016

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
10043 PIECE 17	Lock Washer
305-111-0043	Lock Washer
5310007217809	Lock Washer
531014-0718	Lock Washer
531014-7818	Lock Washer
5310PL0826417	Lock Washer
B4525-308-23	Lock Washer
MS35340-43	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-721-7809?

The FSCG of the NSN 5310-00-721-7809 is 5310

Does the NSN 5310-00-721-7809 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-721-7809 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 5310-00-721-7809 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-721-7809 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 5310-00-721-7809 was assigned to the Federal Catalog?

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