PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N0304 2-129O-Ring

Parker-Hannifin Corp Div O-Ring Division · NSN 5331-00-580-4394 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-580-4394 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-580-4394. Primary manufacturer part number: N0304 2-129.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 1.539 INCHES MINIMUM AND 1.559 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Outside Diameter: 1.734 INCHES MINIMUM AND 1.776 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 35 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corp Div O-Ring Division
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 5331-00-580-4394, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 35 commercial cross-references from 22 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
NSN5331-00-580-4394
Primary Part NumberN0304 2-129
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParker-Hannifin Corp Div O-Ring Division
StatusCANCELLED
Center Hole Diameter1.539 INCHES MINIMUM AND 1.559 INCHES MAXIMUM IN
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Outside Diameter1.734 INCHES MINIMUM AND 1.776 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5331-00-139-0123199986 INTERCHANGEABLE
O-Ring
Eaton Aerospace, Llc Dba Jackson South
5331-00-167-5117AS3209-129 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-004-7231 INTERCHANGEABLE
O-Ring
5930-01-193-19547101J1C INTERCHANGEABLE
Switch,toggle
C & K Components, Llc Div C & K Components
1385-01-504-837491429 INTERCHANGEABLE
Retainer,firing Pin Assembly
Charles Reed Knight Jr Dba Knight's Armament Company
6515-01-570-941791429 INTERCHANGEABLE
Cannula,venous
Medtronic Inc Dlp Div
Cross-Reference Index
Part NumberManufacturer
MS28775-129 Goriziane Group Spa (ITA)
04740643 Zf Industrieantriebe Witten Gmbh (DEU)
1446-129 Parker-Hannifin Corporation Div O-Ring Division (USA)
2-129 N304-75 Parker Hannifin Gmbh O-Ring Division (DEU)
W 4072 629 AL Oerlikon-Buehrle Ag Werkzeugmaschinenfabrik (CHE)
SAE-AS28775 Sae International Dba Sae International (USA)
SR129SR832-75 Le Joint Francais (FRA)
4400181-1290 Zf Industrieantriebe Witten Gmbh (DEU)
MS28775-129 Seals & Packings, Llc (USA)
V3D10077 ITEM 13 Vacco Industries (USA)
5331PL1379091 Jednolity Indeks Materialowy - Uniform Material Index (POL)
N0304 2-129 PRIMARY Parker-Hannifin Corp Div O-Ring Division (USA)
803-4384536D-51 B-48 Zf Industrieantriebe Witten Gmbh (DEU)
914-29 Parker Hannifin Corporation Div O-Ring Division (USA)
MS28775-129 Zf Industrieantriebe Witten Gmbh (DEU)
V3D10199 ITEM 29 Vacco Industries (USA)
2-129 N304-75 Parker-Hannifin Corp Div O-Ring Division (USA)
MS28775-129 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
P48026-129 Acushnet Rubber Company, Inc. Dba Precix (USA)
C4072629AL Rheinmetall Air Defence Ag (CHE)
Related Parts
5331-00-139-0123INTERCHANGEABLE
O-RING
199986
5331-00-167-5117INTERCHANGEABLE
O-RING
AS3209-129
5331-01-004-7231INTERCHANGEABLE
O-RING
5930-01-193-1954INTERCHANGEABLE
SWITCH,TOGGLE
7101J1C
1385-01-504-8374INTERCHANGEABLE
RETAINER,FIRING PIN ASSEMBLY
91429
6515-01-570-9417INTERCHANGEABLE
CANNULA,VENOUS
91429

Frequently Asked Questions

What is NSN 5331-00-580-4394?

NSN 5331-00-580-4394 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-580-4394?

NSN 5331-00-580-4394 has 35 cross-referenced part numbers: MS28775-129 (Goriziane Group Spa), 04740643 (Zf Industrieantriebe Witten Gmbh), 1446-129 (Parker-Hannifin Corporation Div O-Ring Division), 2-129 N304-75 (Parker Hannifin Gmbh O-Ring Division), W 4072 629 AL (Oerlikon-Buehrle Ag Werkzeugmaschinenfabrik) and 30 more.

What NSN replaces 5331-00-580-4394?

There are 6 known substitutes for 5331-00-580-4394: 5331-00-139-0123, 5331-00-167-5117, 5331-01-004-7231 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N0304 2-129?

Key specifications for N0304 2-129: Center Hole Diameter: 1.539 INCHES MINIMUM AND 1.559 INCHES MAXIMUM IN; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Outside Diameter: 1.734 INCHES MINIMUM AND 1.776 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-580-4394 still in active supply?

NSN 5331-00-580-4394 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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