PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5303-0600O-Ring

Kidde-Fenwal, Llc · NSN 5331-00-081-3986 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-081-3986 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-081-3986. Primary manufacturer part number: 5303-0600.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.125 INCHES NOMINAL IN
  • Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL
  • Elongation Percentage: 250 MAXIMUM
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 2 verified cross-references
  • Primary manufacturer: Kidde-Fenwal, Llc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-081-3986, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Kidde-Fenwal, Llc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-081-3986
Primary Part Number5303-0600
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerKidde-Fenwal, Llc
StatusCANCELLED
Cross-Sectional Height0.125 INCHES NOMINAL IN
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Elongation Percentage250 MAXIMUM
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5331-00-080-0811MS29561-264 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-112-1364 INTERCHANGEABLE
O-Ring
5331-00-115-6080MS29561-342 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-137-1288S8057AY146 INTERCHANGEABLE
O-Ring
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
5331-00-141-5083PRP914-46 142-70 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div O-Ring Division
5331-00-171-928013054986-10 INTERCHANGEABLE
O-Ring
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
9320-00-202-1323 INTERCHANGEABLE
Rubber Sheet,solid
5331-00-530-3959 INTERCHANGEABLE
O-Ring
5331-00-618-1664STD3019C46 INTERCHANGEABLE
O-Ring
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
5331-00-618-2516 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
5303-0600 PRIMARY Kidde-Fenwal, Llc (USA)
AMS-R-7362 American Society for Testing and Materials Dba Astm International (USA)
Related Parts
5331-00-080-0811INTERCHANGEABLE
O-RING
MS29561-264
5331-00-112-1364INTERCHANGEABLE
O-RING
5331-00-115-6080INTERCHANGEABLE
O-RING
MS29561-342
5331-00-137-1288INTERCHANGEABLE
O-RING
S8057AY146
5331-00-141-5083INTERCHANGEABLE
O-RING
PRP914-46 142-70
5331-00-171-9280INTERCHANGEABLE
O-RING
13054986-10
9320-00-202-1323INTERCHANGEABLE
RUBBER SHEET,SOLID
5331-00-530-3959INTERCHANGEABLE
O-RING
5331-00-618-1664INTERCHANGEABLE
O-RING
STD3019C46
5331-00-618-2516INTERCHANGEABLE
O-RING
5331-00-684-2547INTERCHANGEABLE
O-RING
MS29561
5331-00-684-7785INTERCHANGEABLE
O-RING
MS29561-211

Frequently Asked Questions

What is NSN 5331-00-081-3986?

NSN 5331-00-081-3986 is a O-Ring, manufactured by Kidde-Fenwal, Llc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-081-3986?

NSN 5331-00-081-3986 has 2 cross-referenced part numbers: 5303-0600 (Kidde-Fenwal, Llc), AMS-R-7362 (American Society for Testing and Materials Dba Astm International).

What NSN replaces 5331-00-081-3986?

There are 12 known substitutes for 5331-00-081-3986: 5331-00-080-0811, 5331-00-112-1364, 5331-00-115-6080 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5303-0600?

Key specifications for 5303-0600: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Elongation Percentage: 250 MAXIMUM; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-081-3986 still in active supply?

NSN 5331-00-081-3986 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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