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R1231 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, overall_width: 2.500 INCHES NOMINAL IN, aperture_width: 1.375 INCHES NOMINAL IN, overall_length: 4.500 INCHES NOMINAL IN, aperture_length: 3.250 INCHES NOMINAL IN, cross-sectional_thickness: 0.094 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-004-3447, 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
R1231
NSN: 5330-00-004-3447
FSC: 5330
CAGE: 25938 — QUALITY RUBBER MFG CO INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
overall_width2.500 INCHES NOMINAL IN
aperture_width1.375 INCHES NOMINAL IN
overall_length4.500 INCHES NOMINAL IN
aperture_length3.250 INCHES NOMINAL IN
cross-sectional_thickness0.094 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-004-3447
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R1231 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 SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
APERTURE LENGTH: 3.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.094 INCHES NOMINAL IN
•
APERTURE WIDTH: 1.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH2.500 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
APERTURE LENGTH3.250 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.094 INCHES NOMINAL IN
APERTURE WIDTH1.375 INCHES NOMINAL IN
OVERALL LENGTH4.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
3362Interchangeable
interchangeable cross-reference
interchangeable
N03362Interchangeable
interchangeable cross-reference
interchangeable
CL51S47-028PC15Interchangeable
interchangeable cross-reference
interchangeable
PNS200-15PC15Interchangeable
interchangeable cross-reference
interchangeable
0SCRL1Interchangeable
interchangeable cross-reference
interchangeable
50080Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R1231?
R1231 is a GASKET.
What parts can replace R1231?
There are 14 known substitutes for R1231: 3362, N03362, CL51S47-028PC15 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R1231?
R1231 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-004-3447. 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