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Y77112899 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

Y77112899: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL CORROSION RESISTING, design_type: SOLID, end_diameter: 0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN, bore_diameter: 0.8600 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN, overall_height: 0.0930 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-115-1723, 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
Y77112899
NSN: 5340-00-115-1723
FSC: 5340 — Hardware, Commercial
CAGE: K0131 — GOODRICH LIMITED DIV GOODRICH LTD (GBR)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
design_typeSOLID
end_diameter0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN
bore_diameter0.8600 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN
overall_height0.0930 INCHES NOMINAL IN
style_designatorSEAT
first_step_diameter0.8600 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN
fsc_application_dataGOVERNOR,FUEL PUMP,JET ENGINE
distance_from_end_to_first_step0.0630 INCHES NOMINAL IN
NSN5340-00-115-1723
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: Y77112899 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
•
FSC APPLICATION DATA: GOVERNOR,FUEL PUMP,JET ENGINE
•
FIRST STEP DIAMETER: 0.8600 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN
•
END DIAMETER: 0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 0.0630 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
BORE DIAMETER: 0.8600 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.0930 INCHES NOMINAL IN
FSC APPLICATION DATAGOVERNOR,FUEL PUMP,JET ENGINE
FIRST STEP DIAMETER0.8600 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN
END DIAMETER0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN
DISTANCE FROM END TO FIRST STEP0.0630 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
BORE DIAMETER0.8600 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING
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 Y77112899?
Y77112899 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for Y77112899?
Y77112899 is cataloged in the U.S. Government catalog under NSN 5340-00-115-1723. 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.