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Technical Data Sheet
PartsTable / COMPONENT / P-51B
P-51B ✓ 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 PILOT,COUNTERBORE is a the manufacturer industrial component. Key specifications include shank_type: THREADED, head_length: 0.625 INCHES NOMINAL IN, head_diameter: 0.648 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, shank_diameter: 0.312 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3460-01-140-0261, 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
P-51B
NSN: 3460-01-140-0261
FSC: 3460
CAGE: 65719 — EX-CELL-O CORP TOOL AND ABRASIVE PRODUCTS DIV (USA)
SPECIFICATIONS
shank_typeTHREADED
head_length0.625 INCHES NOMINAL IN
head_diameter0.648 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
shank_diameter0.312 INCHES NOMINAL IN
NSN3460-01-140-0261
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PILOT,COUNTERBORE TITLE COMPONENT PN P-51B MFR PILOT,COUNTERBORE
KEY FEATURES
•
SHANK TYPE: THREADED
•
HEAD LENGTH: 0.625 INCHES NOMINAL IN
•
SHANK DIAMETER: 0.312 INCHES NOMINAL IN
•
HEAD DIAMETER: 0.648 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SHANK TYPETHREADED
HEAD LENGTH0.625 INCHES NOMINAL IN
SHANK DIAMETER0.312 INCHES NOMINAL IN
HEAD DIAMETER0.648 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
P51BInterchangeable
interchangeable cross-reference
interchangeable
132942Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P-51B?
P-51B is a PILOT,COUNTERBORE.
What parts can replace P-51B?
There are 2 known substitutes for P-51B: P51B, 132942. Substitute compatibility should be verified for your specific system.
What is the NSN for P-51B?
P-51B is cataloged in the Federal Logistics Information System (FLIS) under NSN 3460-01-140-0261. 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