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Technical Data Sheet
PartsTable / O-RING / 203807 1-4IN PC
203807 1-4IN PC ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, outside_diameter: 1.362 INCHES MINIMUM AND 1.396 INCHES MAXIMUM IN, center_hole_diameter: 1.228 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-123-3298, 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
203807 1-4IN PC
NSN: 5331-01-123-3298
FSC: 5331 — O-RING
CAGE: 95995 — WALWORTH CO THE (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
outside_diameter1.362 INCHES MINIMUM AND 1.396 INCHES MAXIMUM IN
center_hole_diameter1.228 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-01-123-3298
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 203807 1-4IN PC 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.228 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.362 INCHES MINIMUM AND 1.396 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.228 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.362 INCHES MINIMUM AND 1.396 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
FFB575BInterchangeable
interchangeable cross-reference
interchangeable
02-6Interchangeable
interchangeable cross-reference
interchangeable
ASC1495847Interchangeable
interchangeable cross-reference
interchangeable
2-26N219-7Interchangeable
interchangeable cross-reference
interchangeable
2-026N674-70Interchangeable
interchangeable cross-reference
interchangeable
230079020Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 203807 1-4IN PC?
203807 1-4IN PC is a O-RING.
What parts can replace 203807 1-4IN PC?
There are 26 known substitutes for 203807 1-4IN PC: FFB575B, 02-6, ASC1495847 and 23 more. Substitute compatibility should be verified for your specific system.
Is 203807 1-4IN PC still available?
203807 1-4IN PC is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026