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STD475 Lock Washer

5310-00-186-7510

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Official Item Classification

Name
Lock Washer
Part Number
STD475
(NSN) National Stock Number
5310-00-186-7510
(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
01/01/1963 (63 years ago)

0.318 inches minimum and 0.333 inches maximum hole diameter, 0.593 inches nominal outside diameter, flat internal teeth style designator, cadmium or zinc overall surface treatment, 0.036 inches nominal material thickness

Specs & Compatibility

Hole Diameter

0.318 inches minimum and 0.333 inches maximum

Outside Diameter

0.593 inches nominal

Material Thickness

0.036 inches nominal

Surface Treatment

cadmium or zinc overall

Style Designator

flat internal teeth

Replacement For

Part Number Description
5310-00-261-6184 No Name Available 04/19/1968

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

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

Hazardous Metals Indicator
N

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
104-3S516A Lock Washer
STD475 Lock Washer

Frequently Asked Questions

What is the FSCG of the NSN 5310-00-186-7510?
The FSCG of the NSN 5310-00-186-7510 is 5310
Does NSN 5310-00-186-7510 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 5310-00-186-7510 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-186-7510 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 5310-00-186-7510 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963