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HP865116 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

HP865116: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: ALUMINUM ALLOY 2024, design_type: SOLID, end_diameter: 0.2300 INCHES NOMINAL IN, bore_diameter: 0.1270 INCHES NOMINAL IN, overall_height: 0.1500 INCHES NOMINAL IN, special_features: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-771-2254, 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
HP865116
NSN: 5340-00-771-2254
FSC: 5340 — Hardware, Commercial
CAGE: 70236 — TACTAIR FLUID CONTROLS INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
design_typeSOLID
end_diameter0.2300 INCHES NOMINAL IN
bore_diameter0.1270 INCHES NOMINAL IN
overall_height0.1500 INCHES NOMINAL IN
special_featuresNOT CASEHARDENED
style_designatorSEAT
surface_treatmentANODIZE
first_step_diameter0.4500 INCHES NOMINAL IN
countersink_diameter0.1370 INCHES NOMINAL IN
fsc_application_dataVALVE,HYDRAULIC ACFT F4C
countersink_angle_in_deg45.0
NSN5340-00-771-2254
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HP865116 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: 45.0
•
FSC APPLICATION DATA: VALVE,HYDRAULIC ACFT F4C
•
FIRST STEP DIAMETER: 0.4500 INCHES NOMINAL IN
•
END DIAMETER: 0.2300 INCHES NOMINAL IN
•
COUNTERSINK DIAMETER: 0.1370 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.0900 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.1500 INCHES NOMINAL IN
COUNTERSINK ANGLE IN DEG45.0
FSC APPLICATION DATAVALVE,HYDRAULIC ACFT F4C
FIRST STEP DIAMETER0.4500 INCHES NOMINAL IN
END DIAMETER0.2300 INCHES NOMINAL IN
COUNTERSINK DIAMETER0.1370 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.0900 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6, ALLOY 2024 FED SPEC 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
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is HP865116?
HP865116 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for HP865116?
HP865116 is cataloged in the U.S. Government catalog under NSN 5340-00-771-2254. 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.