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Technical Data Sheet
PartsTable / COMPONENT / J90-0103-903
J90-0103-903 ✓ 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

CAP,PROTECTIVE,DUST AND MOISTURE. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-699-6557, 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
J90-0103-903
NSN: 5340-01-699-6557
FSC: 5340
CAGE: 14304 — L3HARRIS TECHNOLOGIES, INC. DBA HARRIS CORP DIV HARRIS DEFENSE COMMUNICATIONS (USA)
SPECIFICATIONS
Part NumberJ90-0103-903
NSN5340-01-699-6557
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: J90-0103-903 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
100-003-102Interchangeable
interchangeable cross-reference
interchangeable
855011-0103Interchangeable
interchangeable cross-reference
interchangeable
P14000467Interchangeable
interchangeable cross-reference
interchangeable
202102Interchangeable
interchangeable cross-reference
interchangeable
17C73107-5073Interchangeable
interchangeable cross-reference
interchangeable
16175AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J90-0103-903?
J90-0103-903 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace J90-0103-903?
There are 10 known substitutes for J90-0103-903: 100-003-102, 855011-0103, P14000467 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for J90-0103-903?
J90-0103-903 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-699-6557. 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