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LA557 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The BUR,DENTAL,EXCAVATING is a the manufacturer industrial component. Key specifications include material: STEEL SHANK, end_shape: FLAT OR ROUND, head_shape: STRAIGHT FISSURE, special_features: LATCH, head_size_designation: 557, part_name_assigned_by_controlling_agency: BUR DEN EXCAVATING TUNG CARB SZ557 STR FISSURE HD STEEL SHANK10S. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6520-01-003-3129, 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
LA557
NSN: 6520-01-003-3129
FSC: 6520
CAGE: 37428 — BEAVERS DENTAL DIVISIONDIV SYBRON CANADA LIMITEDDBA BEAVERS DENTAL DIVISION DIV SYBRON CANADA LIMITED (CAN)
SPECIFICATIONS
materialSTEEL SHANK
end_shapeFLAT OR ROUND
head_shapeSTRAIGHT FISSURE
special_featuresLATCH
head_size_designation557
part_name_assigned_by_controlling_agencyBUR DEN EXCAVATING TUNG CARB SZ557 STR FISSURE HD STEEL SHANK10S
NSN6520-01-003-3129
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BUR,DENTAL,EXCAVATING TITLE COMPONENT PN LA557 MFR BUR,DENTAL,EXCAVATING
KEY FEATURES
•
MATERIAL: STEEL SHANK
•
HEAD SHAPE: STRAIGHT FISSURE
•
HEAD SIZE DESIGNATION: 557
•
END SHAPE: FLAT OR ROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL SHANK
MATERIALTUNGSTEN CARBIDE HEAD
SPECIAL FEATURESLATCH
PART NAME ASSIGNED BY CONTROLLING AGENCYBUR DEN EXCAVATING TUNG CARB SZ557 STR FISSURE HD STEEL SHANK10S
HEAD SHAPESTRAIGHT FISSURE
HEAD SIZE DESIGNATION557
END SHAPEFLAT OR ROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
C54304Interchangeable
interchangeable cross-reference
interchangeable
B94.9Interchangeable
interchangeable cross-reference
interchangeable
14766Interchangeable
interchangeable cross-reference
interchangeable
D217475Interchangeable
interchangeable cross-reference
interchangeable
297775Interchangeable
interchangeable cross-reference
interchangeable
40ZP5947Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LA557?
LA557 is a BUR,DENTAL,EXCAVATING.
What parts can replace LA557?
There are 10 known substitutes for LA557: C54304, B94.9, 14766 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LA557?
LA557 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6520-01-003-3129. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026