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7744617 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7744617: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 1.0900 INCHES NOMINAL IN, bore_diameter: 0.7930 INCHES NOMINAL IN, overall_height: 0.4750 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-679-1591, 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
7744617
NSN: 5340-00-679-1591
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter1.0900 INCHES NOMINAL IN
bore_diameter0.7930 INCHES NOMINAL IN
overall_height0.4750 INCHES NOMINAL IN
style_designatorSEAT
first_step_diameter2.2900 INCHES NOMINAL IN
countersink_diameter0.9100 INCHES NOMINAL IN
fsc_application_dataENGINE,RECIPROCATING,GASOLINE,EXCEPT AIRCRAFT
countersink_angle_in_deg90.0
distance_from_end_to_first_step0.2000 INCHES NOMINAL IN
NSN5340-00-679-1591
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7744617 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
•
COUNTERSINK ANGLE IN DEG: 90.0
•
FSC APPLICATION DATA: ENGINE,RECIPROCATING,GASOLINE,EXCEPT AIRCRAFT
•
FIRST STEP DIAMETER: 2.2900 INCHES NOMINAL IN
•
END DIAMETER: 1.0900 INCHES NOMINAL IN
•
COUNTERSINK DIAMETER: 0.9100 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.2000 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.4750 INCHES NOMINAL IN
COUNTERSINK ANGLE IN DEG90.0
FSC APPLICATION DATAENGINE,RECIPROCATING,GASOLINE,EXCEPT AIRCRAFT
FIRST STEP DIAMETER2.2900 INCHES NOMINAL IN
END DIAMETER1.0900 INCHES NOMINAL IN
COUNTERSINK DIAMETER0.9100 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.2000 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
BORE DIAMETER0.7930 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
2805006791591Reference document
Same NSN cross-reference
Reference document — Secondary reference
SQAP7744617Reference document
Same NSN cross-reference
Reference document — Secondary reference
CS-2300-0001Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7744617?
7744617 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 7744617?
There are 3 known substitutes for 7744617: 2805006791591, SQAP7744617, CS-2300-0001. Substitute compatibility should be verified for your specific system.
What is the NSN for 7744617?
7744617 is cataloged in the U.S. Government catalog under NSN 5340-00-679-1591. 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.