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8430288 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8430288: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: ALUMINUM ALLOY 6061, design_type: SOLID, end_diameter: 3.8150 INCHES NOMINAL IN, bore_diameter: 3.5040 INCHES NOMINAL IN, overall_height: 1.4000 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-903-0986, 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
8430288
NSN: 5340-00-903-0986
FSC: 5340 — Hardware, Commercial
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
design_typeSOLID
end_diameter3.8150 INCHES NOMINAL IN
bore_diameter3.5040 INCHES NOMINAL IN
overall_height1.4000 INCHES NOMINAL IN
style_designatorSEAT
first_step_length0.4400 INCHES NOMINAL IN
surface_treatmentANODIZE
counterbore_length0.3000 INCHES NOMINAL IN
first_step_diameter5.2400 INCHES NOMINAL IN
second_end_diameter4.7500 INCHES NOMINAL IN
counterbore_diameter3.7700 INCHES NOMINAL IN
NSN5340-00-903-0986
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8430288 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: 5.2400 INCHES NOMINAL IN
•
END DIAMETER: 3.8150 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625, TYPE 2, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
•
SECOND END DIAMETER: 4.7500 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.6000 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.4000 INCHES NOMINAL IN
FIRST STEP DIAMETER5.2400 INCHES NOMINAL IN
END DIAMETER3.8150 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TYPE 2, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
SECOND END DIAMETER4.7500 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.6000 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/8, 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE
COUNTERBORE LENGTH0.3000 INCHES NOMINAL IN
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8430288?
8430288 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 8430288?
8430288 is cataloged in the U.S. Government catalog under NSN 5340-00-903-0986. This indicates validated use in U.S. government and defense supply chains.
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