PartsTable
Technical Data Sheet
PartsTable / O-RING / 501-1793 PC. NO. 20
501-1793 PC. NO. 20 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The 501-1793 PC. NO. 20 is a the manufacturer industrial component.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-222-3502, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
501-1793 PC. NO. 20
NSN: 5331-01-222-3502
FSC: 5331 — O-RING
CAGE: 53154 — PORTLAND VALVE LLC (USA)
SPECIFICATIONS
Part Number501-1793 PC. NO. 20
NSN5331-01-222-3502
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 501-1793 PC. NO. 20 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
M93248/1-014Interchangeable
interchangeable cross-reference
interchangeable
M83248/1-014Interchangeable
interchangeable cross-reference
interchangeable
9550094Interchangeable
interchangeable cross-reference
interchangeable
AS3209-014Interchangeable
interchangeable cross-reference
interchangeable
SAE-AMS7276Interchangeable
interchangeable cross-reference
interchangeable
9469127714Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501-1793 PC. NO. 20?
501-1793 PC. NO. 20 is a 501-1793 PC. NO. 20.
What parts can replace 501-1793 PC. NO. 20?
There are 17 known substitutes for 501-1793 PC. NO. 20: M93248/1-014, M83248/1-014, 9550094 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 501-1793 PC. NO. 20?
501-1793 PC. NO. 20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-222-3502. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026