PartsTable
Technical Data Sheet
PartsTable / O-RING / C0873-70 2-381
C0873-70 2-381 ✓ 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 CHLOROPRENE CLASS CR, temp_rating: -35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 12.320 INCHES MINIMUM AND 12.470 INCHES MAXIMUM IN, center_hole_diameter: 11.910 INCHES MINIMUM AND 12.040 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM 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 5331-01-026-4387, 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
C0873-70 2-381
NSN: 5331-01-026-4387
FSC: 5331 — O-RING
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
temp_rating-35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter12.320 INCHES MINIMUM AND 12.470 INCHES MAXIMUM IN
center_hole_diameter11.910 INCHES MINIMUM AND 12.040 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
end_item_identificationNIMITZ CLASS CVN; FORRESTAL CLASS CV
NSN5331-01-026-4387
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C0873-70 2-381 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
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
•
CENTER HOLE DIAMETER: 11.910 INCHES MINIMUM AND 12.040 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 12.320 INCHES MINIMUM AND 12.470 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
TEMP RATING: -35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
MATERIALRUBBER CHLOROPRENE CLASS CR
CENTER HOLE DIAMETER11.910 INCHES MINIMUM AND 12.040 INCHES MAXIMUM IN
OUTSIDE DIAMETER12.320 INCHES MINIMUM AND 12.470 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
TEMP RATING-35.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
END ITEM IDENTIFICATIONNIMITZ CLASS CVN; FORRESTAL CLASS CV
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
AB556UInterchangeable
interchangeable cross-reference
interchangeable
2381Interchangeable
interchangeable cross-reference
interchangeable
SCDL47184Interchangeable
interchangeable cross-reference
interchangeable
MILF43673Interchangeable
interchangeable cross-reference
interchangeable
1303441-1Interchangeable
interchangeable cross-reference
interchangeable
2431Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy C0873-70 2-381?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is C0873-70 2-381?
C0873-70 2-381 is a O-RING.
What parts can replace C0873-70 2-381?
There are 19 known substitutes for C0873-70 2-381: AB556U, 2381, SCDL47184 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C0873-70 2-381?
C0873-70 2-381 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-026-4387. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — C0873-70 2-381

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026