PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST1946-011O-Ring

Freudenberg-Nok General Partnership Dba International Seal Co Inc · NSN 5331-01-126-8194 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-126-8194 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-126-8194. Primary manufacturer part number: ST1946-011.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Center Hole Diameter: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
  • 14 verified cross-references
  • Primary manufacturer: Freudenberg-Nok General Partnership Dba International Seal Co Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-126-8194, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Freudenberg-Nok General Partnership Dba International Seal Co Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-126-8194
Primary Part NumberST1946-011
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerFreudenberg-Nok General Partnership Dba International Seal Co Inc
StatusACTIVE
MaterialRUBBER FLUOROCARBON CLASS FPM
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Center Hole Diameter0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-01-646-7909M83485/1-011 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
850000100-R11-011 Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions (USA)
ST1946-011 PRIMARY Freudenberg-Nok General Partnership Dba International Seal Co Inc (USA)
M83485/1-011 Society of Automotive Engineers Inc (USA)
10444022 Nimikkeistokeskus Ncb Finland (FIN)
5331PL0658337 Jednolity Indeks Materialowy - Uniform Material Index (POL)
M83485/1-011 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ST1946-011 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
ST1946-011 PRIMARY Parker-Hannifin Corp Div O-Ring Division (USA)
ST1946-011 Greene Tweed & Co Inc (USA)
ST1946-011 Rtx Corporation Div Pratt & Whitney (USA)
AMS-R-83485/1 Society of Automotive Engineers Inc (USA)
MIL-R-83485/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ST1946-011 PRIMARY Acushnet Rubber Company, Inc. Dba Precix (USA)
5331PL1739945 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5331-01-646-7909INTERCHANGEABLE
O-RING
M83485/1-011

Frequently Asked Questions

What is NSN 5331-01-126-8194?

NSN 5331-01-126-8194 is a O-Ring, manufactured by Freudenberg-Nok General Partnership Dba International Seal Co Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-126-8194?

NSN 5331-01-126-8194 has 14 cross-referenced part numbers: 850000100-R11-011 (Saint-Gobain Performance Plastics Corporation Div Omniseal Solutions), ST1946-011 (Freudenberg-Nok General Partnership Dba International Seal Co Inc), M83485/1-011 (Society of Automotive Engineers Inc), 10444022 (Nimikkeistokeskus Ncb Finland), 5331PL0658337 (Jednolity Indeks Materialowy - Uniform Material Index) and 9 more.

What NSN replaces 5331-01-126-8194?

There is 1 known substitute for 5331-01-126-8194: 5331-01-646-7909. Verify interchangeability with system specifications before substitution.

What are the specifications of ST1946-011?

Key specifications for ST1946-011: Material: RUBBER FLUOROCARBON CLASS FPM; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.

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