PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S-1775O-Ring

The Gorman-Rupp Company Div Gorman-Rupp · NSN 5331-01-198-1731 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-198-1731 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-198-1731. Primary manufacturer part number: S-1775.
Features
  • O-Ring — FSC 5331
  • Criticality Code Justification: ZZZY
  • Cross-Sectional Height: 0.087 INCHES NOMINAL IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
  • Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
  • Hardness Rating: 90.0 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 5331-01-198-1731, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is The Gorman-Rupp Company Div Gorman-Rupp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-198-1731
Primary Part NumberS-1775
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerThe Gorman-Rupp Company Div Gorman-Rupp
StatusACTIVE
Criticality Code JustificationZZZY
Cross-Sectional Height0.087 INCHES NOMINAL IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
Test Data Document81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Temp Rating-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF
Hardness Rating90.0 SHORE DUROMETER A NOMINAL
Center Hole Diameter0.644 INCHES NOMINAL IN
Elongation Percentage80 MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5331-00-404-6304 INTERCHANGEABLE
O-Ring
2805-00-516-7219140136 INTERCHANGEABLE
Valve,poppet,engine
Dresser, Llc
5930-00-959-5155S17-75 INTERCHANGEABLE
Switch,rotary
Cae Usa Inc.
Cross-Reference Index
Part NumberManufacturer
S-1775 The Gorman-Rupp Company Div Gorman-Rupp (USA)
11625-22 The Gorman-Rupp Company Div Gorman-Rupp (USA)
AS568-908MILP5510 Society of Automotive Engineers Inc (USA)
AS568-908MILP5510 Sae International Dba Sae International (USA)
Related Parts
5331-00-404-6304INTERCHANGEABLE
O-RING
2805-00-516-7219INTERCHANGEABLE
VALVE,POPPET,ENGINE
140136
5930-00-959-5155INTERCHANGEABLE
SWITCH,ROTARY
S17-75

Frequently Asked Questions

What is NSN 5331-01-198-1731?

NSN 5331-01-198-1731 is a O-Ring, manufactured by The Gorman-Rupp Company Div Gorman-Rupp, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-198-1731?

NSN 5331-01-198-1731 has 4 cross-referenced part numbers: S-1775 (The Gorman-Rupp Company Div Gorman-Rupp), 11625-22 (The Gorman-Rupp Company Div Gorman-Rupp), AS568-908MILP5510 (Society of Automotive Engineers Inc), AS568-908MILP5510 (Sae International Dba Sae International).

What NSN replaces 5331-01-198-1731?

There are 3 known substitutes for 5331-01-198-1731: 5331-00-404-6304, 2805-00-516-7219, 5930-00-959-5155. Verify interchangeability with system specifications before substitution.

What are the specifications of S-1775?

Key specifications for S-1775: Criticality Code Justification: ZZZY; Cross-Sectional Height: 0.087 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION. 9 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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