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647176 Recessed Washer

5310-00-966-1921

Specifications, compliance details, and sourcing options for this NSN. Request a quote to confirm availability, pricing, and lead time.

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Featured Parts

3200-332
5355-00-392-9867
Knob
3200-340
3020-00-288-2278
Gear Rack
3200-349
5355-00-284-5168
Knob
3200-378
5355-00-284-5169
Knob
3200 3IN GDT
4730-00-855-4919
Pipe Clamp Coupling
3200-4
4730-00-585-8575
Self-Sealing Coupling Assembly
3200-4036-001
5310-00-483-9505
Special Nut
3200-4536-001
5310-00-242-1305
Special Nut

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Official Item Classification

Name
Recessed Washer
Part Number
647176
(NSN) National Stock Number
5310-00-966-1921
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
15933
(FIIG) Federal Item Identification Guide
A022B0
Date
01/01/1962 (64 years ago)

0.370 inches minimum and 0.390 inches maximum outside diameter, 0.220 inches minimum and 0.221 inches maximum hole diameter, 0.011 inches minimum and 0.021 inches maximum material thickness, 0.055 inches minimum and 0.065 inches maximum overall height, 0.015 inches minimum and 0.025 inches maximum recess depth

Specs & Compatibility

Hole Diameter

0.220 inches minimum and 0.221 inches maximum

Outside Diameter

0.370 inches minimum and 0.390 inches maximum

Overall Height

0.055 inches minimum and 0.065 inches maximum

Recess Depth

0.015 inches minimum and 0.025 inches maximum

Material Thickness

0.011 inches minimum and 0.021 inches maximum

Material

steel comp 1018 overall

Material Document And Classification

qq-s-633 canc fed spec single material response overall

Style Designator

recessed

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

0015933

Related Hardware Products

Part Number Description
647176 Recessed Washer

Frequently Asked Questions

What is the FSCG of the NSN 5310-00-966-1921?
The FSCG of the NSN 5310-00-966-1921 is 5310
Does the NSN 5310-00-966-1921 have a Schedule B code assigned?
Yes, the Schedule B code is 7318220000
Does NSN 5310-00-966-1921 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 5310-00-966-1921 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-966-1921 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 5310-00-966-1921 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Mon, Jan 1, 1962