2S8 — SEAT,HELICAL COMPRESSION SPRING
✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW
2S8: SEAT,HELICAL COMPRESSION SPRING.
SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 0.6920 INCHES NOMINAL IN, bore_diameter: 0.4550 INCHES NOMINAL IN, overall_height: 1.3750 INCHES NOMINAL IN, special_features: HOLE 0.140 IN. DIA LOCATED 0.325 IN.
ON CENTER FROM END IN. This part is cataloged in the U.S. Government catalog under NSN 5340-00-116-0435, 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
2S8
NSN: 5340-00-116-0435 FSC: 5340 — Hardware, CommercialCAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
material STEEL design_type SOLID end_diameter 0.6920 INCHES NOMINAL IN bore_diameter 0.4550 INCHES NOMINAL IN overall_height 1.3750 INCHES NOMINAL IN special_features HOLE 0.140 IN. DIA LOCATED 0.325 IN. ON CENTER FROM END IN features_provided CASEHARDENED first_step_length 0.5000 INCHES NOMINAL IN counterbore_length 1.1650 INCHES NOMINAL IN first_step_diameter 0.1110 INCHES NOMINAL IN third_step_diameter 0.0900 INCHES NOMINAL IN counterbore_diameter 0.4560 INCHES NOMINAL IN NSN 5340-00-116-0435
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: 2S8
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: 0.1110 INCHES NOMINAL IN
• END DIAMETER: 0.6920 INCHES NOMINAL IN
• THIRD STEP DIAMETER: 0.0900 INCHES NOMINAL IN
• DISTANCE FROM END TO FIRST STEP: 0.9750 INCHES NOMINAL IN
• COUNTERBORE LENGTH: 1.1650 INCHES NOMINAL IN
• FEATURES PROVIDED: CASEHARDENED
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT 1.3750 INCHES NOMINAL IN FIRST STEP DIAMETER 0.1110 INCHES NOMINAL IN END DIAMETER 0.6920 INCHES NOMINAL IN THIRD STEP DIAMETER 0.0900 INCHES NOMINAL IN DISTANCE FROM END TO FIRST STEP 0.9750 INCHES NOMINAL IN DESIGN TYPE SOLID COUNTERBORE LENGTH 1.1650 INCHES NOMINAL IN FEATURES PROVIDED CASEHARDENED SECOND STEP DIAMETER 1.3750 INCHES NOMINAL IN COUNTERBORE DIAMETER 0.4560 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES
No substitute or cross-reference records for this part.
LIFECYCLE
NSN status Active · U.S. Government catalog
Acquisition advice: Semi-active item — no replacement planned No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2S8?
2S8 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 2S8?
2S8 is cataloged in the U.S. Government catalog under NSN 5340-00-116-0435. This indicates validated use in U.S. government and defense supply chains.