PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42908Bit,forstner

Irwin Industrial Tool Company Dba Irwin Construction Accessories · NSN 5133-00-142-4962 · FSC 5133 · No Item Name Available
Verified by PartsTable
NSN 5133-00-142-4962 — this item is cataloged by the U.S. Government under National Stock Number 5133-00-142-4962. Primary manufacturer part number: 42908.
Features
  • Bit,forstner — FSC 5133
  • Shank Diameter: 0.375 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Shank Style: STRAIGHT ROUND
  • Nominal Cutting Diameter: 0.5000 INCHES IN
  • Cutting End Style: CIRCULAR RIM
  • 5 verified cross-references
  • Primary manufacturer: Irwin Industrial Tool Company Dba Irwin Construction Accessories
Applications
  • Applications requiring Steel Overall construction
General Description

The Bit,forstner, cataloged under National Stock Number 5133-00-142-4962, is classified within Federal Supply Class 5133 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Irwin Industrial Tool Company Dba Irwin Construction Accessories. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5133-00-142-4962
Primary Part Number42908
Item NameBit,forstner
FSC / FSG5133 / 51 — No Item Name Available
ManufacturerIrwin Industrial Tool Company Dba Irwin Construction Accessories
StatusACTIVE
Shank Diameter0.375 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Shank StyleSTRAIGHT ROUND
Nominal Cutting Diameter0.5000 INCHES IN
Cutting End StyleCIRCULAR RIM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-142-495814504 INTERCHANGEABLE
Bit,forstner
Vermont American Corp
5133-00-142-4959 INTERCHANGEABLE
Bit,forstner
5133-00-142-496014506 INTERCHANGEABLE
Bit,forstner
Vermont American Corp
5133-00-142-4961 INTERCHANGEABLE
Bit,forstner
5133-00-142-4964 INTERCHANGEABLE
Bit,forstner
5133-00-142-4965 INTERCHANGEABLE
Bit,forstner
5133-00-142-4966 INTERCHANGEABLE
Bit,forstner
5133-00-142-4967 INTERCHANGEABLE
Bit,forstner
5133-00-142-496814514 INTERCHANGEABLE
Bit,forstner
Vermont American Corp
5133-00-142-497014516 INTERCHANGEABLE
Bit,forstner
Vermont American Corp
Cross-Reference Index
Part NumberManufacturer
42908 Irwin Industrial Tool Company Dba Irwin Construction Accessories (USA)
62887 Vermont American Corp (USA)
42908 Irwin Industrial Tool Company (USA)
GGG-B-383 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-B-383 TY1CLG General Services Administration Federal Supply Service (USA)
Related Parts
5133-00-142-4958INTERCHANGEABLE
BIT,FORSTNER
14504
5133-00-142-4959INTERCHANGEABLE
BIT,FORSTNER
5133-00-142-4960INTERCHANGEABLE
BIT,FORSTNER
14506
5133-00-142-4961INTERCHANGEABLE
BIT,FORSTNER
5133-00-142-4964INTERCHANGEABLE
BIT,FORSTNER
5133-00-142-4965INTERCHANGEABLE
BIT,FORSTNER
5133-00-142-4966INTERCHANGEABLE
BIT,FORSTNER
5133-00-142-4967INTERCHANGEABLE
BIT,FORSTNER
5133-00-142-4968INTERCHANGEABLE
BIT,FORSTNER
14514
5133-00-142-4970INTERCHANGEABLE
BIT,FORSTNER
14516
5133-00-142-4972INTERCHANGEABLE
BIT,FORSTNER
42918
5133-00-142-4974INTERCHANGEABLE
BIT,FORSTNER
42920

Frequently Asked Questions

What is NSN 5133-00-142-4962?

NSN 5133-00-142-4962 is a Bit,forstner, manufactured by Irwin Industrial Tool Company Dba Irwin Construction Accessories, classified under FSC 5133 (No Item Name Available). Status: active.

What are the part numbers for NSN 5133-00-142-4962?

NSN 5133-00-142-4962 has 5 cross-referenced part numbers: 42908 (Irwin Industrial Tool Company Dba Irwin Construction Accessories), 62887 (Vermont American Corp), 42908 (Irwin Industrial Tool Company), GGG-B-383 (Federal Specifications Promulgated by General Services Administration Washington DC), GGG-B-383 TY1CLG (General Services Administration Federal Supply Service).

What NSN replaces 5133-00-142-4962?

There are 12 known substitutes for 5133-00-142-4962: 5133-00-142-4958, 5133-00-142-4959, 5133-00-142-4960 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42908?

Key specifications for 42908: Shank Diameter: 0.375 INCHES NOMINAL IN; Material: STEEL OVERALL; Shank Style: STRAIGHT ROUND; Nominal Cutting Diameter: 0.5000 INCHES IN. 6 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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