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5310-00-921-4544

Flat Washer

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Official Item Classification

Name
Flat Washer
(NSN) National Stock Number
5310-00-921-4544
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
13393
(FIIG) Federal Item Identification Guide
A022B0
Date
12/17/1965 (60 years ago)

0.186 inches minimum and 0.204 inches maximum hole diameter, round peripheral shape style, round center hole shape style, rectangular cross-sectional shape style, 0.044 inches minimum and 0.046 inches maximum thickness

Specs & Compatibility

Cross-Sectional Shape Style

rectangular

Hole Diameter

0.186 inches minimum and 0.204 inches maximum

Peripheral Shape Style

round

Center Hole Shape Style

round

Thickness

0.044 inches minimum and 0.046 inches maximum

Overall Diameter

0.294 inches minimum and 0.296 inches maximum

Hardness Rating

75.0 rockwell superficial 15-n minimum and 79.5 rockwell superficial 15-n maximum

Surface Finish

63.0 microinches outer

Material

steel corrosion resisting overall

Surface Treatment

passivate overall

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

0013393

Related Hardware Products

Part Number Description
589658 Flat Washer

Frequently Asked Questions

What is the FSCG of the NSN 5310-00-921-4544?
The FSCG of the NSN 5310-00-921-4544 is 5310
Does the NSN 5310-00-921-4544 have a Schedule B code assigned?
Yes, the Schedule B code is 7318220000
Does NSN 5310-00-921-4544 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 5310-00-921-4544 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-921-4544 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 5310-00-921-4544 was assigned to the Federal Catalog?
It was assigned 60 years ago, on Fri, Dec 17, 1965