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Technical Data Sheet
PartsTable / O-RING / 2-019 N674-7
2-019 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, end_item_identification: MK-48 TORPEDO. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-031-8251, 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
2-019 N674-7
NSN: 5331-01-031-8251
FSC: 5331 — O-RING
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
end_item_identificationMK-48 TORPEDO
NSN5331-01-031-8251
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-019 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
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
END ITEM IDENTIFICATIONMK-48 TORPEDO
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
ASC1378648Interchangeable
interchangeable cross-reference
interchangeable
29650-HAInterchangeable
interchangeable cross-reference
interchangeable
25K20026Interchangeable
interchangeable cross-reference
interchangeable
101-00500Interchangeable
interchangeable cross-reference
interchangeable
MS28775-010Interchangeable
interchangeable cross-reference
interchangeable
58-010-15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-019 N674-7?
2-019 N674-7 is a O-RING.
What parts can replace 2-019 N674-7?
There are 10 known substitutes for 2-019 N674-7: ASC1378648, 29650-HA, 25K20026 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-019 N674-7?
2-019 N674-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-031-8251. 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