PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

280O-Ring

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 5331-00-482-4460 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-482-4460 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-482-4460. Primary manufacturer part number: 280.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Center Hole Diameter: 2.540 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Outside Diameter: 2.730 INCHES MINIMUM AND 2.782 INCHES MAXIMUM IN
  • Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL
  • Temp Rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
  • Elongation Percentage: 331 MAXIMUM
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 5331-00-482-4460, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-482-4460
Primary Part Number280
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusCANCELLED
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Center Hole Diameter2.540 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Outside Diameter2.730 INCHES MINIMUM AND 2.782 INCHES MAXIMUM IN
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Temp Rating-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
Elongation Percentage331 MAXIMUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3110-00-100-533229585-29520 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
1650-00-107-2399703145 INTERCHANGEABLE
Housing,pressure Switch
Hamilton Sundstrand Corporation
5331-00-527-8522MS29513-145 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5365-00-997-3428102-06892-11 INTERCHANGEABLE
Spacer,plate
Moog Inc
5935-01-102-0946 INTERCHANGEABLE
Connector,receptacle,electrical
4820-01-141-1347620068259 INTERCHANGEABLE
Valve,expansion
Imi Cornelius Inc.
Cross-Reference Index
Part NumberManufacturer
2-145 N674-70 Parker Hannifin Gmbh O-Ring Division (DEU)
P40409 Lull Lift Corp Dba Omniquip Parts Worldwide (USA)
AS568B-145 Society of Automotive Engineers Inc (USA)
280 Atkomatic Valve Co Inc (USA)
D0553002 Calzoni Srl (ITA)
45Z91-D139 Zf Industrieantriebe Witten Gmbh (DEU)
7-57-043 Akron Brass Company (USA)
91567574 Thales Dms France SAS (FRA)
280 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
703145 Ramrod Industries Llc (USA)
2-145 N674-70 Parker Hannifin France Holding (FRA)
2-145N674-70 Parker-Hannifin Corp Div O-Ring Division (USA)
P40409 Jlg Industries, Inc. (USA)
N0674 2-145 Parker-Hannifin Corp Div O-Ring Division (USA)
2-145 N674-70 Parker Hannifin Manufactuing Srl (ITA)
AS568B-145 Sae International Dba Sae International (USA)
D2000-3CH714A25B34EO16EO36 American Society for Testing and Materials Dba Astm International (USA)
06892 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
Related Parts
3110-00-100-5332INTERCHANGEABLE
BEARING,ROLLER,TAPERED
29585-29520
1650-00-107-2399INTERCHANGEABLE
HOUSING,PRESSURE SWITCH
703145
5331-00-527-8522INTERCHANGEABLE
O-RING
MS29513-145
5365-00-997-3428INTERCHANGEABLE
SPACER,PLATE
102-06892-11
5935-01-102-0946INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4820-01-141-1347INTERCHANGEABLE
VALVE,EXPANSION
620068259

Frequently Asked Questions

What is NSN 5331-00-482-4460?

NSN 5331-00-482-4460 is a O-Ring, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-482-4460?

NSN 5331-00-482-4460 has 18 cross-referenced part numbers: 2-145 N674-70 (Parker Hannifin Gmbh O-Ring Division), P40409 (Lull Lift Corp Dba Omniquip Parts Worldwide), AS568B-145 (Society of Automotive Engineers Inc), 280 (Atkomatic Valve Co Inc), D0553002 (Calzoni Srl) and 13 more.

What NSN replaces 5331-00-482-4460?

There are 6 known substitutes for 5331-00-482-4460: 3110-00-100-5332, 1650-00-107-2399, 5331-00-527-8522 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 280?

Key specifications for 280: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 2.540 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Outside Diameter: 2.730 INCHES MINIMUM AND 2.782 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-482-4460 still in active supply?

NSN 5331-00-482-4460 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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