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7707779 — CUP,COMPRESSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7707779: CUP,COMPRESSION.

The CUP,COMPRESSION is a the manufacturer industrial component. Key specifications include overall_length: 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, overall_diameter: 5.657 INCHES MINIMUM AND 5.791 INCHES MAXIMUM IN, center_hole_diameter: 5.133 INCHES MINIMUM AND 5.237 INCHES MAXIMUM IN, fsc_application_data: PISTON,TRANSMISSION,COMBAT TANK, base_material_thickness: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN, recess_major_inside_diameter: 5.567 INCHES MINIMUM AND 5.691 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-337-6457, 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
7707779
NSN: 5340-00-337-6457
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
overall_length0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
overall_diameter5.657 INCHES MINIMUM AND 5.791 INCHES MAXIMUM IN
center_hole_diameter5.133 INCHES MINIMUM AND 5.237 INCHES MAXIMUM IN
fsc_application_dataPISTON,TRANSMISSION,COMBAT TANK
base_material_thickness0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
recess_major_inside_diameter5.567 INCHES MINIMUM AND 5.691 INCHES MAXIMUM IN
NSN5340-00-337-6457
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7707779 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
•
FSC APPLICATION DATA: PISTON,TRANSMISSION,COMBAT TANK
•
OVERALL DIAMETER: 5.657 INCHES MINIMUM AND 5.791 INCHES MAXIMUM IN
•
RECESS MAJOR INSIDE DIAMETER: 5.567 INCHES MINIMUM AND 5.691 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 5.133 INCHES MINIMUM AND 5.237 INCHES MAXIMUM IN
•
BASE MATERIAL THICKNESS: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAPISTON,TRANSMISSION,COMBAT TANK
OVERALL DIAMETER5.657 INCHES MINIMUM AND 5.791 INCHES MAXIMUM IN
OVERALL LENGTH0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
RECESS MAJOR INSIDE DIAMETER5.567 INCHES MINIMUM AND 5.691 INCHES MAXIMUM IN
CENTER HOLE DIAMETER5.133 INCHES MINIMUM AND 5.237 INCHES MAXIMUM IN
BASE MATERIAL THICKNESS0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
6765569Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7707779?
7707779 is a CUP,COMPRESSION.
What parts can replace 7707779?
There is 1 known substitute for 7707779: 6765569. Substitute compatibility should be verified for your specific system.
What is the NSN for 7707779?
7707779 is cataloged in the U.S. Government catalog under NSN 5340-00-337-6457. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.