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10112730 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

10112730: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: COPPER ALLOY 630, design_type: SOLID, end_diameter: 0.3750 INCHES NOMINAL IN, bore_diameter: 0.2520 INCHES NOMINAL IN, overall_height: 0.6110 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-142-4378, 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
10112730
NSN: 5340-01-142-4378
FSC: 5340 — Hardware, Commercial
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialCOPPER ALLOY 630
design_typeSOLID
end_diameter0.3750 INCHES NOMINAL IN
bore_diameter0.2520 INCHES NOMINAL IN
overall_height0.6110 INCHES NOMINAL IN
style_designatorSEAT
first_step_diameter0.7500 INCHES NOMINAL IN
countersink_diameter0.3400 INCHES NOMINAL IN
fsc_application_dataQUADRANT ASSEMBLY,POWER CONTROL,AFT COCKPIT
countersink_angle_in_deg90.0
distance_from_end_to_first_step0.4860 INCHES NOMINAL IN
material_document_and_classificationAMS 4640 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-142-4378
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10112730 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: QUADRANT ASSEMBLY,POWER CONTROL,AFT COCKPIT
•
FIRST STEP DIAMETER: 0.7500 INCHES NOMINAL IN
•
END DIAMETER: 0.3750 INCHES NOMINAL IN
•
COUNTERSINK DIAMETER: 0.3400 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.4860 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.6110 INCHES NOMINAL IN
COUNTERSINK ANGLE IN DEG90.0
FSC APPLICATION DATAQUADRANT ASSEMBLY,POWER CONTROL,AFT COCKPIT
FIRST STEP DIAMETER0.7500 INCHES NOMINAL IN
END DIAMETER0.3750 INCHES NOMINAL IN
COUNTERSINK DIAMETER0.3400 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.4860 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4640 ASSN STD SINGLE MATERIAL RESPONSE
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 10112730?
10112730 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 10112730?
10112730 is cataloged in the U.S. Government catalog under NSN 5340-01-142-4378. 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.