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BL1557 — DISC,BRAKE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

BL1557: DISC,BRAKE.

The DISC,BRAKE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OR STEEL COMP 304L OR IRON ALLOY 660 SLEEVE, head_style: FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER), grip_length: 0.407 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN, lubrication: DRY FILM OR GREASE FILM OR WAX OR CETYL ALCOHOL, shank_style: THREADED SELF-PLUGGING SHANK W/SLEEVE, shank_diameter: 0.178 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 1630-00-560-6436, 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
BL1557
NSN: 1630-00-560-6436
NIINs: 005606436, 011445644
FSC: 1630 — Aircraft Wheel and Brake Systems
CAGE: 08484 — BREEZE-EASTERN LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OR STEEL COMP 304L OR IRON ALLOY 660 SLEEVE
head_styleFLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER)
grip_length0.407 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
lubricationDRY FILM OR GREASE FILM OR WAX OR CETYL ALCOHOL
shank_styleTHREADED SELF-PLUGGING SHANK W/SLEEVE
shank_diameter0.178 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
expansion_deviceTHREADED STEM
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
head_major_diameter0.2612 INCHES MAXIMUM IN
material_document_and_classificationAMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE NUT
NSN1630-00-560-6436
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DISC,BRAKE TITLE COMPONENT PN BL1557 MFR DISC,BRAKE
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 — mutilation
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FREQUENTLY ASKED QUESTIONS
What is BL1557?
BL1557 is a DISC,BRAKE.
What is the NSN for BL1557?
BL1557 is cataloged in the U.S. Government catalog under NSN 1630-00-560-6436. This indicates validated use in U.S. government and defense supply chains.
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