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2775259-101 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2775259-101: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: STEEL, lip_thickness: 0.017 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN, overall_height: 0.162 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN, flange_diameter: 1.090 INCHES NOMINAL IN, flange_thickness: 0.090 INCHES NOMINAL IN, end_hole_diameter: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-084-7378, 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
2775259-101
NSN: 5340-01-084-7378
FSC: 5340 — Hardware, Commercial
CAGE: 3H889 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS (USA)
SPECIFICATIONS
materialSTEEL
lip_thickness0.017 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
overall_height0.162 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN
flange_diameter1.090 INCHES NOMINAL IN
flange_thickness0.090 INCHES NOMINAL IN
end_hole_diameter0.250 INCHES NOMINAL IN
surface_treatmentPASSIVATE
body_inside_diameter0.537 INCHES MINIMUM AND 0.543 INCHES MAXIMUM IN
body_outside_diameter0.560 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationQQ-S-766, 300 SERIES FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-084-7378
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2775259-101 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
•
FLANGE DIAMETER: 1.090 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE
•
FLANGE THICKNESS: 0.090 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.560 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766, 300 SERIES FED SPEC SINGLE MATERIAL RESPONSE
•
BODY INSIDE DIAMETER: 0.537 INCHES MINIMUM AND 0.543 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER1.090 INCHES NOMINAL IN
OVERALL HEIGHT0.162 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE
FLANGE THICKNESS0.090 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.560 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766, 300 SERIES FED SPEC SINGLE MATERIAL RESPONSE
BODY INSIDE DIAMETER0.537 INCHES MINIMUM AND 0.543 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
LIP THICKNESS0.017 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE
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 2775259-101?
2775259-101 is a RETAINER,HELICAL COMPRESSION SPR.
What is the NSN for 2775259-101?
2775259-101 is cataloged in the U.S. Government catalog under NSN 5340-01-084-7378. 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.