PartsTable
Technical Data Sheet
PartsTable / O-RING / M83248-1-904
M83248-1-904 ✓ 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: 70.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM, outside_diameter: 0.495 INCHES NOMINAL IN, center_hole_diameter: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-020-0203, 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
M83248-1-904
NSN: 5331-00-020-0203
FSC: 5331 — O-RING
CAGE: A0189 — BAYKAR PIAGGIO AEROSPACE S.P.A. (ITA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
outside_diameter0.495 INCHES NOMINAL IN
special_featuresDUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY
center_hole_diameter0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
criticality_code_justificationFEAT
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN5331-00-020-0203
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M83248-1-904 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 34
3904Interchangeable
interchangeable cross-reference
interchangeable
1KK528Interchangeable
interchangeable cross-reference
interchangeable
AS568A-904MILP2 5732Interchangeable
interchangeable cross-reference
interchangeable
3-4 N304-75Interchangeable
interchangeable cross-reference
interchangeable
AS3208-04Interchangeable
interchangeable cross-reference
interchangeable
Z00.N7423510020Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M83248-1-904?
M83248-1-904 is a O-RING.
What parts can replace M83248-1-904?
There are 34 known substitutes for M83248-1-904: 3904, 1KK528, AS568A-904MILP2 5732 and 31 more. Substitute compatibility should be verified for your specific system.
Is M83248-1-904 still available?
M83248-1-904 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026