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Technical Data Sheet
PartsTable / O-RING / 2-236 N304-75
2-236 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: 3.480 INCHES MINIMUM AND 3.544 INCHES MAXIMUM IN, special_features: IDENTICAL TO 5331-00-958-1236 EXCEPT FOR HARDNESS RATING, center_hole_diameter: 3.219 INCHES MINIMUM AND 3.249 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, end_item_identification: MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-579-6861, 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
2-236 N304-75
NSN: 5331-00-579-6861
FSC: 5331 — O-RING
CAGE: C0308 — PARKER HANNIFIN GMBH O-RING DIVISION (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter3.480 INCHES MINIMUM AND 3.544 INCHES MAXIMUM IN
special_featuresIDENTICAL TO 5331-00-958-1236 EXCEPT FOR HARDNESS RATING
center_hole_diameter3.219 INCHES MINIMUM AND 3.249 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
NSN5331-00-579-6861
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-236 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
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 3.219 INCHES MINIMUM AND 3.249 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 3.480 INCHES MINIMUM AND 3.544 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SPECIAL FEATURESIDENTICAL TO 5331-00-958-1236 EXCEPT FOR HARDNESS RATING
CENTER HOLE DIAMETER3.219 INCHES MINIMUM AND 3.249 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.480 INCHES MINIMUM AND 3.544 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
623014Interchangeable
interchangeable cross-reference
interchangeable
623014-1Interchangeable
interchangeable cross-reference
interchangeable
D3L1NNInterchangeable
interchangeable cross-reference
interchangeable
6230-02-42Interchangeable
interchangeable cross-reference
interchangeable
6535Interchangeable
interchangeable cross-reference
interchangeable
0051988Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-236 N304-75?
2-236 N304-75 is a O-RING.
What parts can replace 2-236 N304-75?
There are 29 known substitutes for 2-236 N304-75: 623014, 623014-1, D3L1NN and 26 more. Substitute compatibility should be verified for your specific system.
Is 2-236 N304-75 still available?
2-236 N304-75 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026