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751778-1-1 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

751778-1-1: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include end_diameter: 0.4220 INCHES MINIMUM AND 0.4260 INCHES MAXIMUM IN, bore_diameter: 0.3760 INCHES MINIMUM AND 0.3780 INCHES MAXIMUM IN, overall_height: 0.4350 INCHES MINIMUM AND 0.4450 INCHES MAXIMUM IN, first_step_diameter: 0.6070 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN, fsc_application_data: VALVE-SOLENOID P/N751782-1-4, material_hardness_rating: 31.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-212-2196, 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
751778-1-1
NSN: 5340-01-212-2196
FSC: 5340 — Hardware, Commercial
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
end_diameter0.4220 INCHES MINIMUM AND 0.4260 INCHES MAXIMUM IN
bore_diameter0.3760 INCHES MINIMUM AND 0.3780 INCHES MAXIMUM IN
overall_height0.4350 INCHES MINIMUM AND 0.4450 INCHES MAXIMUM IN
first_step_diameter0.6070 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN
fsc_application_dataVALVE-SOLENOID P/N751782-1-4
material_hardness_rating31.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
NSN5340-01-212-2196
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 751778-1-1 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
•
FSC APPLICATION DATA: VALVE-SOLENOID P/N751782-1-4
•
FIRST STEP DIAMETER: 0.6070 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN
•
MATERIAL HARDNESS RATING: 31.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
•
END DIAMETER: 0.4220 INCHES MINIMUM AND 0.4260 INCHES MAXIMUM IN
•
BORE DIAMETER: 0.3760 INCHES MINIMUM AND 0.3780 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.4350 INCHES MINIMUM AND 0.4450 INCHES MAXIMUM IN
FSC APPLICATION DATAVALVE-SOLENOID P/N751782-1-4
FIRST STEP DIAMETER0.6070 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN
MATERIAL HARDNESS RATING31.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
END DIAMETER0.4220 INCHES MINIMUM AND 0.4260 INCHES MAXIMUM IN
BORE DIAMETER0.3760 INCHES MINIMUM AND 0.3780 INCHES MAXIMUM 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 751778-1-1?
751778-1-1 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 751778-1-1?
751778-1-1 is cataloged in the U.S. Government catalog under NSN 5340-01-212-2196. This indicates validated use in U.S. government and defense supply chains.
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