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776919 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

776919: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: ALUMINUM ALLOY 6061, design_type: SOLID, end_diameter: 0.4180 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN, bore_diameter: 0.3180 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN, overall_height: 1.1300 INCHES MINIMUM AND 1.1500 INCHES MAXIMUM IN, surface_treatment: ANODIZE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-247-7965, 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
776919
NSN: 5340-01-247-7965
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
design_typeSOLID
end_diameter0.4180 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN
bore_diameter0.3180 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN
overall_height1.1300 INCHES MINIMUM AND 1.1500 INCHES MAXIMUM IN
surface_treatmentANODIZE
material_document_and_classificationAMS 4150 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-247-7965
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 776919 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
•
END DIAMETER: 0.4180 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN
•
DESIGN TYPE: SOLID
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4150 ASSN STD SINGLE MATERIAL RESPONSE
•
SURFACE TREATMENT: ANODIZE
•
BORE DIAMETER: 0.3180 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 6061
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.1300 INCHES MINIMUM AND 1.1500 INCHES MAXIMUM IN
END DIAMETER0.4180 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN
DESIGN TYPESOLID
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4150 ASSN STD SINGLE MATERIAL RESPONSE
SURFACE TREATMENTANODIZE
BORE DIAMETER0.3180 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY 6061
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 776919?
776919 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 776919?
776919 is cataloged in the U.S. Government catalog under NSN 5340-01-247-7965. This indicates validated use in U.S. government and defense supply chains.
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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.