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Technical Data Sheet
2-445N674-70 ✓ 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: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 8.468 INCHES MINIMUM AND 8.582 INCHES MAXIMUM IN, special_features: CERTIFIED FREE FROM MERCURY CONTAMINATION, center_hole_diameter: 7.945 INCHES MINIMUM AND 8.005 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 5331-00-007-6116, 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
2-445N674-70
NSN: 5331-00-007-6116
FSC: 5331 — O-RING
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter8.468 INCHES MINIMUM AND 8.582 INCHES MAXIMUM IN
special_featuresCERTIFIED FREE FROM MERCURY CONTAMINATION
center_hole_diameter7.945 INCHES MINIMUM AND 8.005 INCHES MAXIMUM IN
elongation_percentage331 MAXIMUM
cross-sectional_height0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
criticality_code_justificationFEAT
NSN5331-00-007-6116
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-445N674-70 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
OUTSIDE DIAMETER: 8.525 INCHES NOMINAL IN
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
MATERIAL: RUBBER SYNTHETIC
CENTER HOLE DIAMETER: 7.945 INCHES MINIMUM AND 8.005 INCHES MAXIMUM IN
TEMP RATING: -35.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
OUTSIDE DIAMETER8.525 INCHES NOMINAL IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
MATERIALRUBBER SYNTHETIC
CENTER HOLE DIAMETER7.945 INCHES MINIMUM AND 8.005 INCHES MAXIMUM IN
TEMP RATING-35.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
2-445N674-70Interchangeable
interchangeable cross-reference
interchangeable
2-445 N0674-70Interchangeable
interchangeable cross-reference
interchangeable
RNG1721Interchangeable
Same NIIN cross-reference
interchangeable
AS568-445Interchangeable
Same NIIN cross-reference
interchangeable
PRP568-445-4200-70Interchangeable
Same NIIN cross-reference
interchangeable
ASTMD2000Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-445N674-70?
2-445N674-70 is a O-RING.
What parts can replace 2-445N674-70?
There are 6 known substitutes for 2-445N674-70: 2-445N674-70, 2-445 N0674-70, RNG1721 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-445N674-70?
2-445N674-70 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-007-6116. This indicates validated use in U.S. government and defense supply chains.
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