556743 — DUCT AND FLANGE,VALVE TO TURBINE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

556743: DUCT AND FLANGE,VALVE TO TURBINE.

DUCT AND FLANGE,VALVE TO TURBINE. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED BOTH ENDS, inside_diameter: 11.41 MILLIMETERS NOMINAL MM, style_designator: CYLINDRICAL, spring_free_length: 19.5 MILLIMETERS NOMINAL MM, spring_solid_length: 4.78 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 1660-00-888-8395, 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

556743

NSN: 1660-00-888-8395
NIINs: 008888395, 011595952
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)

SPECIFICATIONS

material	STEEL OVERALL
end_style	SPRING END,SQUARED BOTH ENDS
inside_diameter	11.41 MILLIMETERS NOMINAL MM
style_designator	CYLINDRICAL
spring_free_length	19.5 MILLIMETERS NOMINAL MM
spring_solid_length	4.78 MILLIMETERS MAXIMUM MM
coil_helix_direction	RIGHT-HAND OR LEFT-HAND
spring_deflection_rate	0.384 POUNDS PER INCH NOMINAL LBS
spring_free_outside_diameter	12.45 MILLIMETERS NOMINAL MM
NSN	1660-00-888-8395

COMPONENT DIAGRAM

KEY FEATURES

•

GENERAL CHARACTERISTICS ITEM DESCRIPTION: DUCT 1.000 IN. OD 0.878 IN. ID;FLANGE 1.445 IN. SQUARE 0.200 IN. THK,4 MOUNTING HOLES 0.230 IN. DIA;O/A ITEM LG 1.300 IN. IN

TECHNICAL CHARACTERISTICS

GENERAL CHARACTERISTICS ITEM DESCRIPTION	DUCT 1.000 IN. OD 0.878 IN. ID;FLANGE 1.445 IN. SQUARE 0.200 IN. THK,4 MOUNTING HOLES 0.230 IN. DIA;O/A ITEM LG 1.300 IN. IN
END ITEM IDENTIFICATION	1660000339178

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)Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 556743?

556743 is a DUCT AND FLANGE,VALVE TO TURBINE.

What is the NSN for 556743?

556743 is cataloged in the U.S. Government catalog under NSN 1660-00-888-8395. This indicates validated use in U.S. government and defense supply chains.

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556743 — DUCT AND FLANGE,VALVE TO TURBINE

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