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Technical Data Sheet
PartsTable / O-RING / 2-140 N304-75
2-140 N304-75 ✓ 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, outside_diameter: 2.420 INCHES MINIMUM AND 2.466 INCHES MAXIMUM IN, center_hole_diameter: 2.227 INCHES MINIMUM AND 2.247 INCHES MAXIMUM IN, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-585-6632, 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
2-140 N304-75
NSN: 5331-00-585-6632
FSC: 5331 — O-RING
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter2.420 INCHES MINIMUM AND 2.466 INCHES MAXIMUM IN
center_hole_diameter2.227 INCHES MINIMUM AND 2.247 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
NSN5331-00-585-6632
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-140 N304-75 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: 2.227 INCHES MINIMUM AND 2.247 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 2.420 INCHES MINIMUM AND 2.466 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER2.227 INCHES MINIMUM AND 2.247 INCHES MAXIMUM IN
OUTSIDE DIAMETER2.420 INCHES MINIMUM AND 2.466 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
GGG-F-325 TY7STCInterchangeable
interchangeable cross-reference
interchangeable
12568Interchangeable
interchangeable cross-reference
interchangeable
A-A-2311 TY3Interchangeable
interchangeable cross-reference
interchangeable
993306-55Interchangeable
interchangeable cross-reference
interchangeable
NY25-30NInterchangeable
interchangeable cross-reference
interchangeable
5031-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-140 N304-75?
2-140 N304-75 is a O-RING.
What parts can replace 2-140 N304-75?
There are 17 known substitutes for 2-140 N304-75: GGG-F-325 TY7STC, 12568, A-A-2311 TY3 and 14 more. Substitute compatibility should be verified for your specific system.
Is 2-140 N304-75 still available?
2-140 N304-75 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