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Technical Data Sheet
21008043-101 ✓ 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 color: BLACK, material: RUBBER CHLOROPRENE CLASS CR, temp_rating: -40.0 FAHRENHEIT AND 240.0 FAHRENHEIT DEGF, center_hole_diameter: 2.985 INCHES MINIMUM AND 3.015 INCHES MAXIMUM IN, cross-sectional_height: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN, reference_number_differentiating_characteristics: AS DIFFERENTIATED BY JOINT QTY ANID DIM.. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-094-2210, 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
21008043-101
NSN: 5331-01-094-2210
FSC: 5331 — O-RING
CAGE: 81395 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. DBA BAE SYSTEMS (USA)
SPECIFICATIONS
colorBLACK
materialRUBBER CHLOROPRENE CLASS CR
temp_rating-40.0 FAHRENHEIT AND 240.0 FAHRENHEIT DEGF
center_hole_diameter2.985 INCHES MINIMUM AND 3.015 INCHES MAXIMUM IN
cross-sectional_height0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY JOINT QTY ANID DIM.
NSN5331-01-094-2210
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21008043-101 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
COLOR: BLACK
TEMP RATING: -40.0 FAHRENHEIT AND 240.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER: 2.985 INCHES MINIMUM AND 3.015 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY JOINT QTY ANID DIM.
CROSS-SECTIONAL HEIGHT: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
MATERIAL: RUBBER CHLOROPRENE CLASS CR
TECHNICAL CHARACTERISTICS (FLIS)
COLORBLACK
TEMP RATING-40.0 FAHRENHEIT AND 240.0 FAHRENHEIT DEGF
CENTER HOLE DIAMETER2.985 INCHES MINIMUM AND 3.015 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY JOINT QTY ANID DIM.
CROSS-SECTIONAL HEIGHT0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
MATERIALRUBBER CHLOROPRENE CLASS CR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
372AInterchangeable
interchangeable cross-reference
interchangeable
2557Interchangeable
interchangeable cross-reference
interchangeable
CPA2400A001Interchangeable
interchangeable cross-reference
interchangeable
94289Interchangeable
interchangeable cross-reference
interchangeable
341AInterchangeable
interchangeable cross-reference
interchangeable
372APLUGInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21008043-101?
21008043-101 is a O-RING.
What parts can replace 21008043-101?
There are 9 known substitutes for 21008043-101: 372A, 2557, CPA2400A001 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21008043-101?
21008043-101 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-094-2210. This indicates validated use in U.S. government and defense supply chains.
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