PartsTable
Technical Data Sheet
AS3578-126 ✓ 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 BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 65.0 SHORE DUROMETER A NOMINAL, outside_diameter: 1.550 INCHES MINIMUM AND 1.586 INCHES MAXIMUM IN, center_hole_diameter: 1.356 INCHES MINIMUM AND 1.368 INCHES MAXIMUM IN, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 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 5331-00-584-1225, 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
AS3578-126
NSN: 5331-00-584-1225
FSC: 5331 — O-RING
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating65.0 SHORE DUROMETER A NOMINAL
outside_diameter1.550 INCHES MINIMUM AND 1.586 INCHES MAXIMUM IN
center_hole_diameter1.356 INCHES MINIMUM AND 1.368 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
NSN5331-00-584-1225
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3578-126 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
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
HARDNESS RATING: 65.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER: 1.356 INCHES MINIMUM AND 1.368 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 1.550 INCHES MINIMUM AND 1.586 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
HARDNESS RATING65.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER1.356 INCHES MINIMUM AND 1.368 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.550 INCHES MINIMUM AND 1.586 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
MS29513-126Interchangeable
interchangeable cross-reference
interchangeable
211110Interchangeable
interchangeable cross-reference
interchangeable
182389Interchangeable
1810
interchangeable
182389-1Interchangeable
interchangeable cross-reference
interchangeable
MS9021-126Interchangeable
Same NIIN cross-reference
interchangeable
SAE-AS3578Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS3578-126?
AS3578-126 is a O-RING.
What parts can replace AS3578-126?
There are 9 known substitutes for AS3578-126: MS29513-126, 211110, 182389 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3578-126?
AS3578-126 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-584-1225. This indicates validated use in U.S. government and defense supply chains.
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