PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

101A905U01O-Ring

Fischer and Porter Co · NSN 5331-00-288-2371 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-288-2371 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-288-2371. Primary manufacturer part number: 101A905U01.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 0.801 INCHES MINIMUM AND 0.831 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Elongation Percentage: 331 MAXIMUM
  • Center Hole Diameter: 0.671 INCHES MINIMUM AND 0.681 INCHES MAXIMUM IN
  • Temp Rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL
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 5331-00-288-2371, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Fischer and Porter Co. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 30 commercial cross-references from 20 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
NSN5331-00-288-2371
Primary Part Number101A905U01
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerFischer and Porter Co
StatusCANCELLED
Outside Diameter0.801 INCHES MINIMUM AND 0.831 INCHES MAXIMUM IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Elongation Percentage331 MAXIMUM
Center Hole Diameter0.671 INCHES MINIMUM AND 0.681 INCHES MAXIMUM IN
Temp Rating-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-100-0294 INTERCHANGEABLE
Cup,tapered Roller Bearing
2990-00-163-081808273M INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
5331-00-166-0993J221P017 INTERCHANGEABLE
O-Ring
General Electric Company
3110-00-198-142210568 INTERCHANGEABLE
Bearing,ball,annular
Itw Food Equipment Group Llc Dba Hobart Service
5330-00-275-3466 INTERCHANGEABLE
Gasket
5307-00-331-971082-73 INTERCHANGEABLE
Stud,stepped
Marshall Excelsior Co
2815-00-446-55213378589 INTERCHANGEABLE
Spider Assembly
Hatch & Kirk, Inc.
5331-00-501-9820 INTERCHANGEABLE
O-Ring
5120-00-555-2035GZ-8273 INTERCHANGEABLE
Alignment Tool,electronic Equipm
Gc/waldom Inc
5331-00-712-1473 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
101A905U01 Fischer and Porter Co (USA)
AS568-017 Society of Automotive Engineers Inc (USA)
A6689.017.303 Zf Industrieantriebe Witten Gmbh (DEU)
G140-1-78X17-17 Eltro Gmbhgesellschaft Fuer Strahlungstechnik (DEU)
G140-1-78X17-17 Thales Optronics B.v. (NLD)
2-017N674-70 Parker-Hannifin Corp Div O-Ring Division (USA)
2-017 Zf Industrieantriebe Witten Gmbh (DEU)
8273 Imi Cash Valve Inc (USA)
G140-1-78X17-17 Hensoldt Optronics Gmbh (DEU)
Y325-17 Zf Industrieantriebe Witten Gmbh (DEU)
AMS3215 Society of Automotive Engineers Inc (USA)
G140-1-78X17-17 Vincorion Advanced Systems Gmbh Div Jenoptik Defense and Civil Systems (DEU)
2-017 N674-70 Zf Industrieantriebe Witten Gmbh (DEU)
2-017N674-70 Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
2-017 N674-70 Parker Hannifin Gmbh O-Ring Division (DEU)
V1-2017 Parker-Hannifin Corporation Dba Pneutronics Div Fluid Control Division (USA)
2591-009 Zf Industrieantriebe Witten Gmbh (DEU)
MR8017 C0MP 366 Minnesota Rubber Co (USA)
1108-107 Kepner Products Co Div Kepner Products Company (USA)
F10894 Cnh Industrial America Llc Dba Cnh America (USA)
Related Parts
3110-00-100-0294INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
2990-00-163-0818INTERCHANGEABLE
MUFFLER,EXHAUST
08273M
5331-00-166-0993INTERCHANGEABLE
O-RING
J221P017
3110-00-198-1422INTERCHANGEABLE
BEARING,BALL,ANNULAR
10568
5330-00-275-3466INTERCHANGEABLE
GASKET
5307-00-331-9710INTERCHANGEABLE
STUD,STEPPED
82-73
2815-00-446-5521INTERCHANGEABLE
SPIDER ASSEMBLY
3378589
5331-00-501-9820INTERCHANGEABLE
O-RING
5120-00-555-2035INTERCHANGEABLE
ALIGNMENT TOOL,ELECTRONIC EQUIPM
GZ-8273
5331-00-712-1473INTERCHANGEABLE
O-RING
4720-00-737-2333INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
49567H
5331-00-821-8331INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-00-288-2371?

NSN 5331-00-288-2371 is a O-Ring, manufactured by Fischer and Porter Co, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-288-2371?

NSN 5331-00-288-2371 has 30 cross-referenced part numbers: 101A905U01 (Fischer and Porter Co), AS568-017 (Society of Automotive Engineers Inc), A6689.017.303 (Zf Industrieantriebe Witten Gmbh), G140-1-78X17-17 (Eltro Gmbhgesellschaft Fuer Strahlungstechnik), G140-1-78X17-17 (Thales Optronics B.v.) and 25 more.

What NSN replaces 5331-00-288-2371?

There are 12 known substitutes for 5331-00-288-2371: 3110-00-100-0294, 2990-00-163-0818, 5331-00-166-0993 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 101A905U01?

Key specifications for 101A905U01: Outside Diameter: 0.801 INCHES MINIMUM AND 0.831 INCHES MAXIMUM IN; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Elongation Percentage: 331 MAXIMUM; Center Hole Diameter: 0.671 INCHES MINIMUM AND 0.681 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-288-2371 still in active supply?

NSN 5331-00-288-2371 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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