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3729363 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3729363: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 0.5620 INCHES NOMINAL IN, bore_diameter: 0.4690 INCHES NOMINAL IN, overall_height: 0.4380 INCHES NOMINAL IN, special_features: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-960-0464, 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
3729363
NSN: 5340-00-960-0464
FSC: 5340 — Hardware, Commercial
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter0.5620 INCHES NOMINAL IN
bore_diameter0.4690 INCHES NOMINAL IN
overall_height0.4380 INCHES NOMINAL IN
special_featuresNOT CASEHARDENED
style_designatorSEAT
bore_taper_in_deg5.0
first_step_length0.0620 INCHES NOMINAL IN
first_step_diameter0.7810 INCHES NOMINAL IN
chamfer_angle_in_deg10.0
second_step_diameter1.1880 INCHES NOMINAL IN
NSN5340-00-960-0464
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3729363 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
•
FIRST STEP DIAMETER: 0.7810 INCHES NOMINAL IN
•
END DIAMETER: 0.5620 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.2500 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
SECOND STEP DIAMETER: 1.1880 INCHES NOMINAL IN
•
BORE TAPER IN DEG: 5.0
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.4380 INCHES NOMINAL IN
FIRST STEP DIAMETER0.7810 INCHES NOMINAL IN
END DIAMETER0.5620 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.2500 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
SECOND STEP DIAMETER1.1880 INCHES NOMINAL IN
BORE TAPER IN DEG5.0
FIRST STEP LENGTH0.0620 INCHES NOMINAL IN
SPECIAL FEATURESNOT CASEHARDENED
SUBSTITUTES & CROSS-REFERENCES 1
149868Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3729363?
3729363 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 3729363?
There is 1 known substitute for 3729363: 149868. Substitute compatibility should be verified for your specific system.
What is the NSN for 3729363?
3729363 is cataloged in the U.S. Government catalog under NSN 5340-00-960-0464. This indicates validated use in U.S. government and defense supply chains.
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