PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2644Tap Set,thread Cutting

Irwin Industrial Tool Company · NSN 5136-01-431-6120 · FSC 5136 · No Item Name Available
Verified by PartsTable
NSN 5136-01-431-6120 — this item is cataloged by the U.S. Government under National Stock Number 5136-01-431-6120. Primary manufacturer part number: 2644.
Features
  • Tap Set,thread Cutting — FSC 5136
  • Tap Quantity: 3
  • Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL TAP
  • Supplementary Features: INDUSTRIAL QUALTIY (IQ) TOOLS PROGRAM ITEM
  • Tap Characteristic: FRACTIONAL SIZE 1/2-13 NC; CUT THREADS; 1 EA OF TAPER, PLUG AND BOTTOMING STYLES
  • Thread Direction: RIGHT-HAND
  • 2 verified cross-references
Applications
  • Applications requiring Steel Tap construction
General Description

The Tap Set,thread Cutting, cataloged under National Stock Number 5136-01-431-6120, is classified within Federal Supply Class 5136 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Irwin Industrial Tool Company. Government technical data includes 6 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5136-01-431-6120
Primary Part Number2644
Item NameTap Set,thread Cutting
FSC / FSG5136 / 51 — No Item Name Available
ManufacturerIrwin Industrial Tool Company
StatusACTIVE
Tap Quantity3
Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL TAP
Supplementary FeaturesINDUSTRIAL QUALTIY (IQ) TOOLS PROGRAM ITEM
Tap CharacteristicFRACTIONAL SIZE 1/2-13 NC; CUT THREADS; 1 EA OF TAPER, PLUG AND BOTTOMING STYLES
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
9540-00-197-9866 INTERCHANGEABLE
Channel,structural
5930-00-421-2428ESR350 INTERCHANGEABLE
Switch,rotary
Mission Systems Davenport Inc.
5970-00-556-54622644 INTERCHANGEABLE
Insulator,standoff
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5915-01-058-1323 INTERCHANGEABLE
Filter,low Pass
5998-01-117-57272644 INTERCHANGEABLE
Circuit Card Assembly
Analog Devices Inc Div Greensboro Site
4240-01-152-35555590T71 INTERCHANGEABLE
Mask,air Filtering
Mcmaster-Carr Supply Co
5340-01-354-59332644 INTERCHANGEABLE
Button,plug
Heyco Inc Dba Heyco Products
Cross-Reference Index
Part NumberManufacturer
2644 Irwin Industrial Tool Company (USA)
2644 Irwin Industrial Tool Company Dba Irwin Construction Accessories (USA)
Related Parts
9540-00-197-9866INTERCHANGEABLE
CHANNEL,STRUCTURAL
5930-00-421-2428INTERCHANGEABLE
SWITCH,ROTARY
ESR350
5970-00-556-5462INTERCHANGEABLE
INSULATOR,STANDOFF
2644
5915-01-058-1323INTERCHANGEABLE
FILTER,LOW PASS
5998-01-117-5727INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
2644
4240-01-152-3555INTERCHANGEABLE
MASK,AIR FILTERING
5590T71
5340-01-354-5933INTERCHANGEABLE
BUTTON,PLUG
2644

Frequently Asked Questions

What is NSN 5136-01-431-6120?

NSN 5136-01-431-6120 is a Tap Set,thread Cutting, manufactured by Irwin Industrial Tool Company, classified under FSC 5136 (No Item Name Available). Status: active.

What are the part numbers for NSN 5136-01-431-6120?

NSN 5136-01-431-6120 has 2 cross-referenced part numbers: 2644 (Irwin Industrial Tool Company), 2644 (Irwin Industrial Tool Company Dba Irwin Construction Accessories).

What NSN replaces 5136-01-431-6120?

There are 7 known substitutes for 5136-01-431-6120: 9540-00-197-9866, 5930-00-421-2428, 5970-00-556-5462 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2644?

Key specifications for 2644: Tap Quantity: 3; Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: STEEL TAP; Supplementary Features: INDUSTRIAL QUALTIY (IQ) TOOLS PROGRAM ITEM. 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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