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PartsTable / COMPONENT / SA12103-1
SA12103-1 ✓ 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 material: RUBBER SYNTHETIC, design_type: FRICTION, overall_diameter: 2.656 INCHES NOMINAL IN, inside_diameter_length: 3.938 INCHES NOMINAL IN, end_item_identification: W/S: AIRCRAFT, PHANTOM F-4; AIRCRAFT, EAGLE F-15; AIRCRAFT, T-38; VEHICLE, AIRCRAFT REFUELER R-9, round_cap_outside_surface_condition: RIBBED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-840-7455, 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
SA12103-1
NSN: 5340-00-840-7455
FSC: 5340
CAGE: 0NBU7 — J. PENNER CORPORATION DBA J PENNER CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
design_typeFRICTION
overall_diameter2.656 INCHES NOMINAL IN
inside_diameter_length3.938 INCHES NOMINAL IN
end_item_identificationW/S: AIRCRAFT, PHANTOM F-4; AIRCRAFT, EAGLE F-15; AIRCRAFT, T-38; VEHICLE, AIRCRAFT REFUELER R-9
round_cap_outside_surface_conditionRIBBED
material_document_and_classificationMIL-G-1086, TYPE 1, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE
tube_outside_diameter_for_which_designed2.219 INCHES NOMINAL IN
NSN5340-00-840-7455
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SA12103-1 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
•
DESIGN TYPE: FRICTION
•
ROUND CAP OUTSIDE SURFACE CONDITION: RIBBED
•
INSIDE DIAMETER LENGTH: 3.938 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-1086, TYPE 1, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 2.219 INCHES NOMINAL IN
•
OVERALL DIAMETER: 2.656 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPEFRICTION
ROUND CAP OUTSIDE SURFACE CONDITIONRIBBED
INSIDE DIAMETER LENGTH3.938 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-1086, TYPE 1, CLASS 1 MIL SPEC SINGLE MATERIAL RESPONSE
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED2.219 INCHES NOMINAL IN
END ITEM IDENTIFICATIONW/S: AIRCRAFT, PHANTOM F-4; AIRCRAFT, EAGLE F-15; AIRCRAFT, T-38; VEHICLE, AIRCRAFT REFUELER R-9
OVERALL DIAMETER2.656 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
155C207Interchangeable
interchangeable cross-reference
interchangeable
121031Interchangeable
interchangeable cross-reference
interchangeable
SCC47830Interchangeable
interchangeable cross-reference
interchangeable
30501-926Interchangeable
interchangeable cross-reference
interchangeable
40234JInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SA12103-1?
SA12103-1 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace SA12103-1?
There are 5 known substitutes for SA12103-1: 155C207, 121031, SCC47830 and 2 more. Substitute compatibility should be verified for your specific system.
Is SA12103-1 still available?
SA12103-1 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