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4N435 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4N435: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 0.5000 INCHES NOMINAL IN, overall_height: 0.8400 INCHES NOMINAL IN, first_step_diameter: 1.0140 INCHES NOMINAL IN, second_step_diameter: 1.2240 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-110-8180, 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
4N435
NSN: 5340-01-110-8180
FSC: 5340 — Hardware, Commercial
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter0.5000 INCHES NOMINAL IN
overall_height0.8400 INCHES NOMINAL IN
first_step_diameter1.0140 INCHES NOMINAL IN
second_step_diameter1.2240 INCHES NOMINAL IN
material_hardness_rating35.0 ROCKWELL C MINIMUM
NSN5340-01-110-8180
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4N435 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: 1.0140 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 35.0 ROCKWELL C MINIMUM
•
END DIAMETER: 0.5000 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
SECOND STEP DIAMETER: 1.2240 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.8400 INCHES NOMINAL IN
FIRST STEP DIAMETER1.0140 INCHES NOMINAL IN
MATERIAL HARDNESS RATING35.0 ROCKWELL C MINIMUM
END DIAMETER0.5000 INCHES NOMINAL IN
DESIGN TYPESOLID
SECOND STEP DIAMETER1.2240 INCHES NOMINAL IN
MATERIALSTEEL
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 4N435?
4N435 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 4N435?
4N435 is cataloged in the U.S. Government catalog under NSN 5340-01-110-8180. 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.