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8754640 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8754640: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, features_provided: CASEHARDENED, material_hardness_rating: 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-678-1376, 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
8754640
NSN: 5340-00-678-1376
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
features_providedCASEHARDENED
material_hardness_rating89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM
material_document_and_classificationQQ-S-631, COMP 1010 TO 1026, COND. OPT. FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634, COMP 1010 TO 1026, COND. OPT. FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-678-1376
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8754640 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
•
MATERIAL HARDNESS RATING: 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM
•
DESIGN TYPE: SOLID
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-631, COMP 1010 TO 1026, COND. OPT. FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634, COMP 1010 TO 1026, COND. OPT. FED SPEC SINGLE MATERIAL RESPONSE
•
FEATURES PROVIDED: CASEHARDENED
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM
DESIGN TYPESOLID
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-631, COMP 1010 TO 1026, COND. OPT. FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634, COMP 1010 TO 1026, COND. OPT. FED SPEC SINGLE MATERIAL RESPONSE
FEATURES PROVIDEDCASEHARDENED
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 1
2805006781376Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 8754640?
8754640 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 8754640?
There is 1 known substitute for 8754640: 2805006781376. Substitute compatibility should be verified for your specific system.
What is the NSN for 8754640?
8754640 is cataloged in the U.S. Government catalog under NSN 5340-00-678-1376. This indicates validated use in U.S. government and defense supply chains.
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