5310-01-189-4591

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Lock Washer

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Official Item Classification

Name: Lock Washer
(NSN) National Stock Number: 5310-01-189-4591
(FSG) Federal Supply Group: 53 Hardware and Abrasives
(FSC) Federal Supply Classification: 5310 Nuts and Washers
(INC) Item Name Code: 14218
(FIIG) Federal Item Identification Guide: A022B0
Date: 09/15/1984 (42 years ago)

1.6 millimeters nominal material thickness, steel corrosion resisting overall material, passivate overall surface treatment, 6.1 millimeters minimum and 6.5 millimeters maximum hole diameter, 11.8 millimeters nominal outside diameter

Specs & Compatibility

Hole Diameter

6.1 millimeters minimum and 6.5 millimeters maximum

Outside Diameter

11.8 millimeters nominal

Material Thickness

1.6 millimeters nominal

Material

steel corrosion resisting overall

Surface Treatment

passivate overall

Surface Treatment Document And Classification

qq-p-35 fed spec single treatment response overall

Style Designator

split helical-right hand

Regulatory Compliance

Precious Metals Indicator

Item does not contain precious metal.

Criticality Code

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0014218

Related Hardware Products

Part Number	Description
AS12987C6	Lock Washer
HS7020C6	Lock Washer
M6DIN127-A2	Lock Washer
OSS7020C6	Lock Washer

Frequently Asked Questions

What is the FSCG of the NSN 5310-01-189-4591?

The FSCG of the NSN 5310-01-189-4591 is 5310

Does the NSN 5310-01-189-4591 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-01-189-4591 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 5310-01-189-4591 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-189-4591 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 5310-01-189-4591 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Sep 15, 1984