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Technical Data Sheet
PartsTable / O-RING / A49372MZZ
A49372MZZ ✓ 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, outside_diameter: 1.554 INCHES MINIMUM AND 1.594 INCHES MAXIMUM IN, center_hole_diameter: 1.290 INCHES MINIMUM AND 1.302 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-579-7925, 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
A49372MZZ
NSN: 5331-00-579-7925
FSC: 5331 — O-RING
CAGE: 34889 — HUNT VALVE COMPANY INC DBA UNION FLONETICS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter1.554 INCHES MINIMUM AND 1.594 INCHES MAXIMUM IN
center_hole_diameter1.290 INCHES MINIMUM AND 1.302 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-579-7925
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A49372MZZ 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: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.554 INCHES MINIMUM AND 1.594 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 1.290 INCHES MINIMUM AND 1.302 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.554 INCHES MINIMUM AND 1.594 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER1.290 INCHES MINIMUM AND 1.302 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
422135Interchangeable
interchangeable cross-reference
interchangeable
71978PC28Interchangeable
interchangeable cross-reference
interchangeable
AN6227-24Interchangeable
interchangeable cross-reference
interchangeable
PS1-30-5-B24Interchangeable
interchangeable cross-reference
interchangeable
501233Interchangeable
interchangeable cross-reference
interchangeable
AN6227-24ESInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A49372MZZ?
A49372MZZ is a O-RING.
What parts can replace A49372MZZ?
There are 26 known substitutes for A49372MZZ: 422135, 71978PC28, AN6227-24 and 23 more. Substitute compatibility should be verified for your specific system.
Is A49372MZZ still available?
A49372MZZ is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026