PartsTable
Technical Data Sheet
3-904N525-6 ✓ 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, temp_rating: -25.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 60.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN, center_hole_diameter: 0.346 INCHES MINIMUM AND 0.357 INCHES MAXIMUM IN, elongation_percentage: 510 MAXIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-558-1901, 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
3-904N525-6
NSN: 5331-00-558-1901
FSC: 5331 — O-RING
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-25.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating60.0 SHORE DUROMETER A NOMINAL
outside_diameter0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN
center_hole_diameter0.346 INCHES MINIMUM AND 0.357 INCHES MAXIMUM IN
elongation_percentage510 MAXIMUM
cross-sectional_height0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
NSN5331-00-558-1901
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-904N525-6 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
CENTER HOLE DIAMETER: 0.346 INCHES MINIMUM AND 0.357 INCHES MAXIMUM IN
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
ELONGATION PERCENTAGE: 510 MAXIMUM
OUTSIDE DIAMETER: 0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
HARDNESS RATING: 60.0 SHORE DUROMETER A NOMINAL
TEMP RATING: -25.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.346 INCHES MINIMUM AND 0.357 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
ELONGATION PERCENTAGE510 MAXIMUM
OUTSIDE DIAMETER0.484 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
HARDNESS RATING60.0 SHORE DUROMETER A NOMINAL
TEMP RATING-25.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
ABS3303Interchangeable
interchangeable cross-reference
interchangeable
205-160-904Interchangeable
interchangeable cross-reference
interchangeable
M83248/2-904Interchangeable
interchangeable cross-reference
interchangeable
M83248/-904Interchangeable
interchangeable cross-reference
interchangeable
431385 ITEM 41Interchangeable
interchangeable cross-reference
interchangeable
X25C85Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-904N525-6?
3-904N525-6 is a O-RING.
What parts can replace 3-904N525-6?
There are 26 known substitutes for 3-904N525-6: ABS3303, 205-160-904, M83248/2-904 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-904N525-6?
3-904N525-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-558-1901. This indicates validated use in U.S. government and defense supply chains.
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