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Technical Data Sheet
PartsTable / O-RING / 204-785
204-785 ✓ 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 INSULATION SLEEVING,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: IRON, document_type: PARTS LIST, overall_length: 1.500 INCHES NOMINAL IN, document_source: 28953, overall_diameter: 3.500 INCHES NOMINAL IN, special_features: 1.00IN.DIA HOLE THRU; HELD IN PLACE BY NUT MTG FACILITY IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-599-2890, 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
204-785
NSN: 5331-00-599-2890
FSC: 5331 — O-RING
CAGE: 0KDP7 — KIDDE-FENWAL, LLC (USA)
SPECIFICATIONS
materialIRON
document_typePARTS LIST
overall_length1.500 INCHES NOMINAL IN
document_source28953
overall_diameter3.500 INCHES NOMINAL IN
special_features1.00IN.DIA HOLE THRU; HELD IN PLACE BY NUT MTG FACILITY IN
component_quantity4
cross-sectional_height0.125 INCHES NOMINAL IN
document_identificationWATER/OIL PUMP ASSEMBLY MOTOR
end_item_identificationWEAPON SYSTEM CODE XE; TRUCK, FAMILY OF MEDIUM TACTICLE VEHICLE (FMTV); NSN 2320-01-354-4528
component_document_originINDUSTRIAL
component_document_page_number1
NSN5331-00-599-2890
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 204-785 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 HEIGHT: 0.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
0097827Interchangeable
interchangeable cross-reference
interchangeable
10129311Interchangeable
interchangeable cross-reference
interchangeable
FIT-221 3-16BLKInterchangeable
interchangeable cross-reference
interchangeable
12-372Interchangeable
interchangeable cross-reference
interchangeable
204785Interchangeable
interchangeable cross-reference
interchangeable
B5474 NOTE 1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 204-785?
204-785 is a INSULATION SLEEVING,ELECTRICAL.
What parts can replace 204-785?
There are 7 known substitutes for 204-785: 0097827, 10129311, FIT-221 3-16BLK and 4 more. Substitute compatibility should be verified for your specific system.
Is 204-785 still available?
204-785 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