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Technical Data Sheet
PartsTable / COMPONENT / 1034574-3
1034574-3 ✓ 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 CLAMP,SYNCHRO is a the manufacturer industrial component. Key specifications include width: 0.390 INCHES NOMINAL IN, height: 0.133 INCHES NOMINAL IN, length: 0.320 INCHES NOMINAL IN, hole_diameter: 0.112 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-652-3387, 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
1034574-3
NSN: 5340-00-652-3387
FSC: 5340
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
width0.390 INCHES NOMINAL IN
height0.133 INCHES NOMINAL IN
length0.320 INCHES NOMINAL IN
hole_diameter0.112 INCHES NOMINAL IN
NSN5340-00-652-3387
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1034574-3 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
•
HOLE DIAMETER: 0.112 INCHES NOMINAL IN
•
LENGTH: 0.320 INCHES NOMINAL IN
•
HEIGHT: 0.133 INCHES NOMINAL IN
•
WIDTH: 0.390 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.112 INCHES NOMINAL IN
LENGTH0.320 INCHES NOMINAL IN
HEIGHT0.133 INCHES NOMINAL IN
WIDTH0.390 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
A20865Interchangeable
interchangeable cross-reference
interchangeable
A21653Interchangeable
interchangeable cross-reference
interchangeable
C11-206Interchangeable
interchangeable cross-reference
interchangeable
1047241-7Interchangeable
Same NIIN cross-reference
interchangeable
993905-02Interchangeable
Same NIIN cross-reference
interchangeable
918337-5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1034574-3?
1034574-3 is a CLAMP,SYNCHRO.
What parts can replace 1034574-3?
There are 11 known substitutes for 1034574-3: A20865, A21653, C11-206 and 8 more. Substitute compatibility should be verified for your specific system.
Is 1034574-3 still available?
1034574-3 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