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2640-667X1PC7 Flat Washer

5310-00-731-9451

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

03-204-790-00-8 01
5330-00-372-9743
D Labyrinth Packing
03-20537-000
5340-01-340-5633
Mounting Bracket
03-20618
5330-01-346-3816
Gasket
03-20618-000
5330-01-346-3816
Gasket
03-20618-001
5330-01-346-3816
Gasket
03-209-158PC1AND03-112-182PC4
5330-00-372-9891
G Labyrinth Packing
03-209-158PC1ANDD03-112-182PC4
5330-00-372-9891
G Labyrinth Packing
03-209-159PC1AND03-112-182PC1
5330-00-372-9749
D Labyrinth Packing

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Official Item Classification

Name
Flat Washer
Part Number
2640-667X1PC7
(NSN) National Stock Number
5310-00-731-9451
(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
03/01/1968 (58 years ago)

0.123 inches minimum and 0.125 inches maximum thickness, round center hole shape style, round peripheral shape style, rectangular cross-sectional shape style, 0.876 inches minimum and 0.878 inches maximum hole diameter

Specs & Compatibility

Cross-Sectional Shape Style

rectangular

Hole Diameter

0.876 inches minimum and 0.878 inches maximum

Peripheral Shape Style

round

Center Hole Shape Style

round

Thickness

0.123 inches minimum and 0.125 inches maximum

Overall Diameter

1.246 inches minimum and 1.248 inches maximum

Material

plastic acetal overall

Material Document And Classification

delrin af ty 13b,fscm 19793 mfr ref single material response 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
2640-667X1PC7 Flat Washer
2640-669X2PC7 Flat Washer
2640-774X1 PIEC Flat Washer

Frequently Asked Questions

What is the FSCG of the NSN 5310-00-731-9451?
The FSCG of the NSN 5310-00-731-9451 is 5310
Does the NSN 5310-00-731-9451 have a Schedule B code assigned?
Yes, the Schedule B code is 3926904500
Does NSN 5310-00-731-9451 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 5310-00-731-9451 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-731-9451 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 5310-00-731-9451 was assigned to the Federal Catalog?
It was assigned 58 years ago, on Fri, Mar 1, 1968