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DS-935393 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

DS-935393: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 0.6100 INCHES NOMINAL IN, bore_diameter: 0.2890 INCHES MINIMUM AND 0.2930 INCHES MAXIMUM IN, overall_height: 0.1720 INCHES NOMINAL IN, special_features: MATL-STEEL MIL-S-7420,COMP E52100;NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-248-1545, 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
DS-935393
NSN: 5340-00-248-1545
FSC: 5340 — Hardware, Commercial
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter0.6100 INCHES NOMINAL IN
bore_diameter0.2890 INCHES MINIMUM AND 0.2930 INCHES MAXIMUM IN
overall_height0.1720 INCHES NOMINAL IN
special_featuresMATL-STEEL MIL-S-7420,COMP E52100;NOT CASEHARDENED
style_designatorSEAT
counterbore_length0.1250 INCHES NOMINAL IN
first_step_diameter0.8130 INCHES NOMINAL IN
counterbore_diameter0.3750 INCHES NOMINAL IN
material_hardness_rating49.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
distance_from_end_to_first_step0.1090 INCHES NOMINAL IN
NSN5340-00-248-1545
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DS-935393 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: 0.8130 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 49.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
•
END DIAMETER: 0.6100 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.1090 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
COUNTERBORE LENGTH: 0.1250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.1720 INCHES NOMINAL IN
FIRST STEP DIAMETER0.8130 INCHES NOMINAL IN
MATERIAL HARDNESS RATING49.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
END DIAMETER0.6100 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.1090 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
COUNTERBORE LENGTH0.1250 INCHES NOMINAL IN
COUNTERBORE DIAMETER0.3750 INCHES NOMINAL IN
SPECIAL FEATURESMATL-STEEL MIL-S-7420,COMP E52100;NOT CASEHARDENED
SUBSTITUTES & CROSS-REFERENCES 1
5953Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 DS-935393?
DS-935393 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace DS-935393?
There is 1 known substitute for DS-935393: 5953. Substitute compatibility should be verified for your specific system.
What is the NSN for DS-935393?
DS-935393 is cataloged in the U.S. Government catalog under NSN 5340-00-248-1545. 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.