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74A411513-2003 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

74A411513-2003: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: ALUMINUM ALLOY 7075, design_type: SOLID, end_diameter: 0.6250 INCHES NOMINAL IN, ridge_height: 0.1750 INCHES NOMINAL IN, bore_diameter: 0.3750 INCHES NOMINAL IN, overall_height: 0.3000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-120-4901, 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
74A411513-2003
NSN: 5340-01-120-4901
FSC: 5340 — Hardware, Commercial
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075
design_typeSOLID
end_diameter0.6250 INCHES NOMINAL IN
ridge_height0.1750 INCHES NOMINAL IN
bore_diameter0.3750 INCHES NOMINAL IN
overall_height0.3000 INCHES NOMINAL IN
special_featuresNOT CASEHARDENED
style_designatorSEAT
first_step_diameter1.5600 INCHES NOMINAL IN
fsc_application_dataACFT LANDING GEAR
distance_from_end_to_first_step0.2250 INCHES NOMINAL IN
material_document_and_classificationQQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-120-4901
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 74A411513-2003 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
•
RIDGE HEIGHT: 0.1750 INCHES NOMINAL IN
•
FSC APPLICATION DATA: ACFT LANDING GEAR
•
FIRST STEP DIAMETER: 1.5600 INCHES NOMINAL IN
•
END DIAMETER: 0.6250 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.2250 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
TECHNICAL CHARACTERISTICS
RIDGE HEIGHT0.1750 INCHES NOMINAL IN
OVERALL HEIGHT0.3000 INCHES NOMINAL IN
FSC APPLICATION DATAACFT LANDING GEAR
FIRST STEP DIAMETER1.5600 INCHES NOMINAL IN
END DIAMETER0.6250 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.2250 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9, ALLOY 7075, T7351 FED SPEC SINGLE MATERIAL RESPONSE
DISTANCE FROM CENTER TO BEGINNING OF RIDGE0.7200 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
10112396Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 74A411513-2003?
74A411513-2003 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 74A411513-2003?
There is 1 known substitute for 74A411513-2003: 10112396. Substitute compatibility should be verified for your specific system.
What is the NSN for 74A411513-2003?
74A411513-2003 is cataloged in the U.S. Government catalog under NSN 5340-01-120-4901. This indicates validated use in U.S. government and defense supply chains.
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