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Technical Data Sheet
PartsTable / COMPONENT / 7653491-1
7653491-1 ✓ 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. Key specifications include special_features: EXPLOSIVE ORDNANCE DISPOSAL TOOLS/EQUIPMENT, criticality_code_justification: FEAT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-412-5505, 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
7653491-1
NSN: 5340-01-412-5505
FSC: 5340
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
special_featuresEXPLOSIVE ORDNANCE DISPOSAL TOOLS/EQUIPMENT
criticality_code_justificationFEAT
NSN5340-01-412-5505
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7653491-1 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESEXPLOSIVE ORDNANCE DISPOSAL TOOLS/EQUIPMENT
CRITICALITY CODE JUSTIFICATIONFEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
02531Interchangeable
interchangeable cross-reference
interchangeable
103889Interchangeable
interchangeable cross-reference
interchangeable
303SZ21Interchangeable
interchangeable cross-reference
interchangeable
SCD181715-19Interchangeable
interchangeable cross-reference
interchangeable
50104Interchangeable
interchangeable cross-reference
interchangeable
RR283Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7653491-1?
7653491-1 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 7653491-1?
There are 16 known substitutes for 7653491-1: 02531, 103889, 303SZ21 and 13 more. Substitute compatibility should be verified for your specific system.
Is 7653491-1 still available?
7653491-1 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