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Technical Data Sheet
PartsTable / O-RING / 5-051 N674-7
5-051 N674-7 ✓ 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: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.139 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN, center_hole_diameter: 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN, elongation_percentage: 331 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 5331-00-874-2910, 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
5-051 N674-7
NSN: 5331-00-874-2910
FSC: 5331 — O-RING
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter0.139 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
center_hole_diameter0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
elongation_percentage331 MAXIMUM
cross-sectional_height0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
NSN5331-00-874-2910
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5-051 N674-7 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: 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.139 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
•
TEMP RATING: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
CROSS-SECTIONAL HEIGHT: 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 331 MAXIMUM
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.139 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
TEMP RATING-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
ELONGATION PERCENTAGE331 MAXIMUM
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
5051Interchangeable
interchangeable cross-reference
interchangeable
5051-1Interchangeable
interchangeable cross-reference
interchangeable
215-26323-1Interchangeable
interchangeable cross-reference
interchangeable
660AInterchangeable
interchangeable cross-reference
interchangeable
660A4-125Interchangeable
interchangeable cross-reference
interchangeable
324636R91Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5-051 N674-7?
5-051 N674-7 is a O-RING.
What parts can replace 5-051 N674-7?
There are 21 known substitutes for 5-051 N674-7: 5051, 5051-1, 215-26323-1 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5-051 N674-7?
5-051 N674-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-874-2910. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026