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6565-20-317-9101 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6565-20-317-9101: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL COMP 630, design_type: SOLID, end_diameter: 0.4370 INCHES NOMINAL IN, bore_diameter: 0.1880 INCHES NOMINAL IN, overall_height: 0.4690 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-941-3213, 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
6565-20-317-9101
NSN: 5340-00-941-3213
FSC: 5340 — Hardware, Commercial
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 630
design_typeSOLID
end_diameter0.4370 INCHES NOMINAL IN
bore_diameter0.1880 INCHES NOMINAL IN
overall_height0.4690 INCHES NOMINAL IN
style_designatorSEAT
first_step_length0.0940 INCHES NOMINAL IN
surface_treatmentPASSIVATE
first_step_diameter0.6750 INCHES NOMINAL IN
second_end_diameter0.3050 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM IN
distance_from_end_to_first_step0.2810 INCHES NOMINAL IN
material_document_and_classificationAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-941-3213
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6565-20-317-9101 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
•
FIRST STEP DIAMETER: 0.6750 INCHES NOMINAL IN
•
END DIAMETER: 0.4370 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.3050 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 0.2810 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.4690 INCHES NOMINAL IN
FIRST STEP DIAMETER0.6750 INCHES NOMINAL IN
END DIAMETER0.4370 INCHES NOMINAL IN
SECOND END DIAMETER0.3050 INCHES MINIMUM AND 0.3100 INCHES MAXIMUM IN
DISTANCE FROM END TO FIRST STEP0.2810 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
FIRST STEP LENGTH0.0940 INCHES NOMINAL 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6565-20-317-9101?
6565-20-317-9101 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 6565-20-317-9101?
6565-20-317-9101 is cataloged in the U.S. Government catalog under NSN 5340-00-941-3213. 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.