PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P-57Pilot,counterbore

Wright Machine & Tool Co., Inc. · NSN 3460-00-233-7991 · FSC 3460 · No Item Name Available
Verified by PartsTable
NSN 3460-00-233-7991 — this item is cataloged by the U.S. Government under National Stock Number 3460-00-233-7991. Primary manufacturer part number: P-57.
Features
  • Pilot,counterbore — FSC 3460
  • Head Diameter: 0.750 INCHES NOMINAL IN
  • Shank Type: THREADED
  • Head Length: 0.750 INCHES NOMINAL IN
  • Shank Diameter: 0.250 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Wright Machine & Tool Co., Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pilot,counterbore, cataloged under National Stock Number 3460-00-233-7991, is classified within Federal Supply Class 3460 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Wright Machine & Tool Co., Inc.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3460-00-233-7991
Primary Part NumberP-57
Item NamePilot,counterbore
FSC / FSG3460 / 34 — No Item Name Available
ManufacturerWright Machine & Tool Co., Inc.
StatusACTIVE
Head Diameter0.750 INCHES NOMINAL IN
Shank TypeTHREADED
Head Length0.750 INCHES NOMINAL IN
Shank Diameter0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-291-3844 INTERCHANGEABLE
Packing,preformed
6130-00-455-0670P57 INTERCHANGEABLE
Power Supply Subassembly
Thermo Eberline Llc Dba Thermo Fisher Scientific Div Thermo Fisher Scientific
5950-00-755-2108154485 INTERCHANGEABLE
Transformer,current
Ametek, Inc. Div Aerospace & Defense
Cross-Reference Index
Part NumberManufacturer
P57 Ex-Cell-O Corp Tool and Abrasive Products Div (USA)
P-57 PRIMARY Wright Machine & Tool Co., Inc. (USA)
Related Parts
5330-00-291-3844INTERCHANGEABLE
PACKING,PREFORMED
6130-00-455-0670INTERCHANGEABLE
POWER SUPPLY SUBASSEMBLY
P57
5950-00-755-2108INTERCHANGEABLE
TRANSFORMER,CURRENT
154485

Frequently Asked Questions

What is NSN 3460-00-233-7991?

NSN 3460-00-233-7991 is a Pilot,counterbore, manufactured by Wright Machine & Tool Co., Inc., classified under FSC 3460 (No Item Name Available). Status: active.

What are the part numbers for NSN 3460-00-233-7991?

NSN 3460-00-233-7991 has 2 cross-referenced part numbers: P57 (Ex-Cell-O Corp Tool and Abrasive Products Div), P-57 (Wright Machine & Tool Co., Inc.).

What NSN replaces 3460-00-233-7991?

There are 3 known substitutes for 3460-00-233-7991: 5330-00-291-3844, 6130-00-455-0670, 5950-00-755-2108. Verify interchangeability with system specifications before substitution.

What are the specifications of P-57?

Key specifications for P-57: Head Diameter: 0.750 INCHES NOMINAL IN; Shank Type: THREADED; Head Length: 0.750 INCHES NOMINAL IN; Shank Diameter: 0.250 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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