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2774018-101 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2774018-101: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 1.4800 INCHES MINIMUM AND 1.4900 INCHES MAXIMUM IN, bore_diameter: 1.2300 INCHES NOMINAL IN, overall_height: 0.1000 INCHES NOMINAL IN, special_features: MATL-STEEL QQ-S-766,CL 320 OR CL304;NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-119-0820, 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
2774018-101
NSN: 5340-01-119-0820
FSC: 5340 — Hardware, Commercial
CAGE: 3H889 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter1.4800 INCHES MINIMUM AND 1.4900 INCHES MAXIMUM IN
bore_diameter1.2300 INCHES NOMINAL IN
overall_height0.1000 INCHES NOMINAL IN
special_featuresMATL-STEEL QQ-S-766,CL 320 OR CL304;NOT CASEHARDENED
style_designatorSEAT
surface_treatmentPASSIVATE
counterbore_length0.0860 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM IN
counterbore_diameter1.4710 INCHES NOMINAL IN
surface_treatment_document_and_classificationPS13001, MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE
NSN5340-01-119-0820
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2774018-101 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: 1.4800 INCHES MINIMUM AND 1.4900 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: PS13001, MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
COUNTERBORE LENGTH: 0.0860 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM IN
•
COUNTERBORE DIAMETER: 1.4710 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.1000 INCHES NOMINAL IN
END DIAMETER1.4800 INCHES MINIMUM AND 1.4900 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS13001, MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
COUNTERBORE LENGTH0.0860 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM IN
COUNTERBORE DIAMETER1.4710 INCHES NOMINAL IN
SPECIAL FEATURESMATL-STEEL QQ-S-766,CL 320 OR CL304;NOT CASEHARDENED
SURFACE TREATMENTPASSIVATE
BORE DIAMETER1.2300 INCHES NOMINAL IN
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 1
10112380Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2774018-101?
2774018-101 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 2774018-101?
There is 1 known substitute for 2774018-101: 10112380. Substitute compatibility should be verified for your specific system.
What is the NSN for 2774018-101?
2774018-101 is cataloged in the U.S. Government catalog under NSN 5340-01-119-0820. 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.