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Technical Data Sheet
PartsTable / O-RING / M83461/1-438
M83461/1-438 ✓ 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 M83461/1-438 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-160-4337, 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
M83461/1-438
NSN: 5331-01-160-4337
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
Part NumberM83461/1-438
NSN5331-01-160-4337
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M83461/1-438 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: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
HARDNESS RATING: 72.0 SHORE DUROMETER A MINIMUM AND 78.0 SHORE DUROMETER A MAXIMUM
•
PERIPHERAL DIAMETER: 6.775 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 6.185 INCHES MINIMUM AND 6.265 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
HARDNESS RATING72.0 SHORE DUROMETER A MINIMUM AND 78.0 SHORE DUROMETER A MAXIMUM
PERIPHERAL DIAMETER6.775 INCHES NOMINAL IN
CENTER HOLE DIAMETER6.185 INCHES MINIMUM AND 6.265 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
MS28775-438Interchangeable
interchangeable cross-reference
interchangeable
546835Interchangeable
interchangeable cross-reference
interchangeable
MS28775-483CPCPInterchangeable
interchangeable cross-reference
interchangeable
SAE-AS28775Interchangeable
interchangeable cross-reference
interchangeable
M83461/1-438Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS83461/1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M83461/1-438?
M83461/1-438 is a M83461/1-438.
What parts can replace M83461/1-438?
There are 10 known substitutes for M83461/1-438: MS28775-438, 546835, MS28775-483CPCP and 7 more. Substitute compatibility should be verified for your specific system.
Is M83461/1-438 still available?
M83461/1-438 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026