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Technical Data Sheet
PartsTable / O-RING / 2-237/N674-70
2-237/N674-70 ✓ 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 2-237/N674-70 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-077-6834, 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
2-237/N674-70
NSN: 5331-01-077-6834
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part Number2-237/N674-70
NSN5331-01-077-6834
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-237/N674-70 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
•
CENTER HOLE DIAMETER: 3.335 INCHES MINIMUM AND 3.383 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
TEMP RATING: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER3.335 INCHES MINIMUM AND 3.383 INCHES MAXIMUM IN
ELONGATION PERCENTAGE125 MAXIMUM
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TEMP RATING-20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
U540Interchangeable
interchangeable cross-reference
interchangeable
72-6970-073Interchangeable
interchangeable cross-reference
interchangeable
955605-1Interchangeable
interchangeable cross-reference
interchangeable
1958422Interchangeable
interchangeable cross-reference
interchangeable
10408Interchangeable
interchangeable cross-reference
interchangeable
11069515Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-237/N674-70?
2-237/N674-70 is a 2-237/N674-70.
What parts can replace 2-237/N674-70?
There are 21 known substitutes for 2-237/N674-70: U540, 72-6970-073, 955605-1 and 18 more. Substitute compatibility should be verified for your specific system.
Is 2-237/N674-70 still available?
2-237/N674-70 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026