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Technical Data Sheet
PartsTable / COMPONENT / 8-663-01
8-663-01 ✓ 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,AIRCRAFT,MATE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED, fastening_device_type: PLAIN HEXAGON HEAD SCREW, end_item_identification: TCTO 1-F-15-1108, distance_from_loop_center_to_tongue_end: 1.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-355-0703, 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
8-663-01
NSN: 5340-01-355-0703
FSC: 5340
CAGE: 08748 — ELDEC AEROSPACE CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_featuresALL PARTS ARE CRES,SCREW REQUIRED TO BE P/N MS24673-B; OD 2.130 IN. MAX,ALL DIMENSIONS APPLY WHEN CLAMP IS CLAMPED AROUND 1.876 IN. DIAMETER FLANGE IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
fastening_device_typePLAIN HEXAGON HEAD SCREW
end_item_identificationTCTO 1-F-15-1108
distance_from_loop_center_to_tongue_end1.750 INCHES NOMINAL IN
NSN5340-01-355-0703
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8-663-01 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
•
MATERIAL: STEEL OVERALL
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 1.750 INCHES NOMINAL IN
•
FASTENING DEVICE TYPE: PLAIN HEXAGON HEAD SCREW
•
STYLE DESIGNATOR: SINGLE LOOP
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
SPECIAL FEATURESALL PARTS ARE CRES,SCREW REQUIRED TO BE P/N MS24673-B; OD 2.130 IN. MAX,ALL DIMENSIONS APPLY WHEN CLAMP IS CLAMPED AROUND 1.876 IN. DIAMETER FLANGE IN
DISTANCE FROM LOOP CENTER TO TONGUE END1.750 INCHES NOMINAL IN
FASTENING DEVICE TYPEPLAIN HEXAGON HEAD SCREW
END ITEM IDENTIFICATIONTCTO 1-F-15-1108
STYLE DESIGNATORSINGLE LOOP
TONGUE HOLE TYPEROUND, UNTHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
8-633Interchangeable
interchangeable cross-reference
interchangeable
ANSI B16.23Interchangeable
interchangeable cross-reference
interchangeable
2666J5Interchangeable
interchangeable cross-reference
interchangeable
8663Interchangeable
interchangeable cross-reference
interchangeable
328976Interchangeable
interchangeable cross-reference
interchangeable
6328976Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8-663-01?
8-663-01 is a CLAMP,AIRCRAFT,MATE.
What parts can replace 8-663-01?
There are 17 known substitutes for 8-663-01: 8-633, ANSI B16.23, 2666J5 and 14 more. Substitute compatibility should be verified for your specific system.
Is 8-663-01 still available?
8-663-01 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