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Technical Data Sheet
PartsTable / COMPONENT / 66190J
66190J ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, hardness_rating: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 2.625 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.000 INCHES NOMINAL IN, cross-sectional_thickness: 0.250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-612-2414, 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
66190J
NSN: 5330-00-612-2414
FSC: 5330
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
hardness_rating55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter2.625 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.000 INCHES NOMINAL IN
cross-sectional_thickness0.250 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationASTM D2000 GRADE 5BG615AE5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-612-2414
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 66190J 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
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 2.625 INCHES NOMINAL IN
•
APERTURE DIAMETER: 2.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 GRADE 5BG615AE5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
HARDNESS RATING: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER2.625 INCHES NOMINAL IN
APERTURE DIAMETER2.000 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.250 INCHES NOMINAL IN
END ITEM IDENTIFICATIONW/S: ADVANCED AVIATION FORWARD AREA REFUELING SYSTEM (AAFARS); VEHICLE, AIRCRAFT REFUELER R-14; GROUND MOBILE FORCE SATELLITE COMM TERM (AN/TSC-93A); SUPPORT EQUIPMENT, B-52 AIRCRAFT; TANK, PUMPING UNIT; TANK UNIT, LIQUID DISPENSER; SUPPORT EQUIP, C-17A AIRCRAFT; TRAILER, SEMI, TANK, 5000 GAL, BULK; FUEL SYSTEM, AMPHIBIOUS ASSAULT, 600,000 GAL CAP (3ID); FUEL DISPENSING SYSTEM, TACT AIRFLD (3ID)(M1966) A
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 GRADE 5BG615AE5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORCIRCULAR
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIALRUBBER SYNTHETIC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
N16C48841-9635Interchangeable
interchangeable cross-reference
interchangeable
JANC25Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-25/4Interchangeable
interchangeable cross-reference
interchangeable
55907Interchangeable
interchangeable cross-reference
interchangeable
714LXInterchangeable
interchangeable cross-reference
interchangeable
SM-C-187248Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 66190J?
66190J is a GASKET.
What parts can replace 66190J?
There are 13 known substitutes for 66190J: N16C48841-9635, JANC25, MIL-C-25/4 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 66190J?
66190J is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-612-2414. 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