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2526531-9 O-Ring

5331-00-420-0621

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

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Official Item Classification

Name
O-Ring
Part Number
2526531-9
(NSN) National Stock Number
5331-00-420-0621
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5331 O-Ring
(INC) Item Name Code
47946
(FIIG) Federal Item Identification Guide
A510X0
Date
12/16/1970 (55 years ago)

rubber isobutylene-isoprene class iir material, 0.069 inches minimum and 0.075 inches maximum cross-sectional height, 0.346 inches minimum and 0.356 inches maximum center hole diameter

Specs & Compatibility

Cross-Sectional Height

0.069 inches minimum and 0.075 inches maximum

Center Hole Diameter

0.346 inches minimum and 0.356 inches maximum

Material

rubber isobutylene-isoprene class iir

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

0047946

Related Hardware Products

Part Number Description
2526531-9 O-Ring
3-904B278-7 O-Ring
904-9078D O-Ring

Frequently Asked Questions

What is the FSCG of the NSN 5331-00-420-0621?
The FSCG of the NSN 5331-00-420-0621 is 5331
Does the NSN 5331-00-420-0621 have a Schedule B code assigned?
Yes, the Schedule B code is 4016930000
Does NSN 5331-00-420-0621 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 5331-00-420-0621 contain precious materials?
Precious metal content is unknown
Does NSN 5331-00-420-0621 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 5331-00-420-0621 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Wed, Dec 16, 1970