PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

501-1793 PC. NO. 20O-Ring

Portland Valve Llc · NSN 5331-01-222-3502 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-222-3502 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-222-3502. Primary manufacturer part number: 501-1793 PC. NO. 20.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.484 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN
  • Criticality Code Justification: ZZZW
  • Peripheral Diameter: 0.629 INCHES NOMINAL IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Elongation Percentage: 125 MAXIMUM
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
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 5331-01-222-3502, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Portland Valve Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-222-3502
Primary Part Number501-1793 PC. NO. 20
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerPortland Valve Llc
StatusACTIVE
Center Hole Diameter0.484 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN
Criticality Code JustificationZZZW
Peripheral Diameter0.629 INCHES NOMINAL IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Elongation Percentage125 MAXIMUM
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Departure From Cited DocumentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Temp Rating-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5331-00-166-0990182629 INTERCHANGEABLE
O-Ring
Woodward, Inc. Div Fuel Systems and Controls
5331-00-922-5952AS3209-014 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-119-2008 INTERCHANGEABLE
O-Ring
5331-01-463-8930M83248/1-014 INTERCHANGEABLE
Packing,preformed,a
Rolls Royce Corp
5331-01-463-8953AS3209-014 INTERCHANGEABLE
Packing,preformed,a
Rolls-Royce Corporation
5331-01-545-7651 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
501-1793 PC. NO. 20 Portland Valve Llc (USA)
AS3209-014 Boeing Distribution Services Defense Llc (USA)
5330012223502 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
5330PL1695592 Jednolity Indeks Materialowy - Uniform Material Index (POL)
SAE-AMS7276 Sae International Dba Sae International (USA)
M83248/1-014 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
283486-0001 PIECE 62 Marotta Controls Inc (USA)
J221P014 General Electric Company (USA)
Related Parts
5331-00-166-0990INTERCHANGEABLE
O-RING
182629
5331-00-922-5952INTERCHANGEABLE
O-RING
AS3209-014
5331-01-119-2008INTERCHANGEABLE
O-RING
5331-01-463-8930INTERCHANGEABLE
PACKING,PREFORMED,A
M83248/1-014
5331-01-463-8953INTERCHANGEABLE
PACKING,PREFORMED,A
AS3209-014
5331-01-545-7651INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-01-222-3502?

NSN 5331-01-222-3502 is a O-Ring, manufactured by Portland Valve Llc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-222-3502?

NSN 5331-01-222-3502 has 8 cross-referenced part numbers: 501-1793 PC. NO. 20 (Portland Valve Llc), AS3209-014 (Boeing Distribution Services Defense Llc), 5330012223502 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 5330PL1695592 (Jednolity Indeks Materialowy - Uniform Material Index), SAE-AMS7276 (Sae International Dba Sae International) and 3 more.

What NSN replaces 5331-01-222-3502?

There are 6 known substitutes for 5331-01-222-3502: 5331-00-166-0990, 5331-00-922-5952, 5331-01-119-2008 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 501-1793 PC. NO. 20?

Key specifications for 501-1793 PC. NO. 20: Center Hole Diameter: 0.484 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN; Criticality Code Justification: ZZZW; Peripheral Diameter: 0.629 INCHES NOMINAL IN; Material: RUBBER FLUOROCARBON CLASS FPM. 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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