PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50250BTYPE1Tap,thread Cutting

Department of the Air Force · NSN 5136-00-187-8025 · FSC 5136 · No Item Name Available
Verified by PartsTable
NSN 5136-00-187-8025 — this item is cataloged by the U.S. Government under National Stock Number 5136-00-187-8025. Primary manufacturer part number: 50250BTYPE1.
Features
  • Tap,thread Cutting — FSC 5136
  • Shank Diameter: 1.302 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN
  • Length: 1.063 INCHES MINIMUM AND 1.187 INCHES MAXIMUM SQUARE END IN
  • Flute Quantity: 8
  • Thread Forming Method: GROUND
  • Style Designator: STRAIGHT FLUTE
  • Thread Structure: REGULAR
  • Nondefinitive Spec/std Data: 1 TYPE AND D SERIES AND A STYLE
Applications
  • Applications requiring Steel Overall construction
General Description

The Tap,thread Cutting, cataloged under National Stock Number 5136-00-187-8025, is classified within Federal Supply Class 5136 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Department of the Air Force. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5136-00-187-8025
Primary Part Number50250BTYPE1
Item NameTap,thread Cutting
FSC / FSG5136 / 51 — No Item Name Available
ManufacturerDepartment of the Air Force
StatusACTIVE
Shank Diameter1.302 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN
Length1.063 INCHES MINIMUM AND 1.187 INCHES MAXIMUM SQUARE END IN
Flute Quantity8
Thread Forming MethodGROUND
Style DesignatorSTRAIGHT FLUTE
Thread StructureREGULAR
Nondefinitive Spec/std Data1 TYPE AND D SERIES AND A STYLE
Thread Size and Series/type Designator1.625-18 UNEF
Flute Quantity8
Width Across Flats0.971 INCHES MINIMUM AND 0.979 INCHES MAXIMUM IN
Starting Chamfer TypeTAPER
Length1.063 INCHES MINIMUM AND 1.187 INCHES MAXIMUM SQUARE END IN
MaterialSTEEL OVERALL
Starting Chamfer TypeTAPER
Thread Pitch Diameters+1.5894 TO 1.5909 INCHES IN
Thread Length1.875 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
Style DesignatorSTRAIGHT FLUTE
Thread Length1.875 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data1 TYPE AND D SERIES AND A STYLE
Thread Size and Series/type Designator1.625-18 UNEF
Thread StructureREGULAR
Width Across Flats0.971 INCHES MINIMUM AND 0.979 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Shank Diameter1.302 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5136-00-187-8001 INTERCHANGEABLE
Tap,thread Cutting
5136-00-187-8004 INTERCHANGEABLE
Tap,thread Cutting
5136-00-187-8005 INTERCHANGEABLE
Tap,thread Cutting
5136-00-187-8008 INTERCHANGEABLE
Tap,thread Cutting
5136-00-187-8012 INTERCHANGEABLE
Tap,thread Cutting
5136-00-187-8014 INTERCHANGEABLE
Tap,thread Cutting
5136-00-187-8031 INTERCHANGEABLE
Tap,thread Cutting
5136-00-221-6112 INTERCHANGEABLE
Tap,thread Cutting
5136-00-228-099654737 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
5136-00-262-1492 INTERCHANGEABLE
Tap,thread Cutting
Cross-Reference Index
Part NumberManufacturer
50250BTYPE1 Department of the Air Force (USA)
GGG-T-70 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-T-70 TY1SEDSTA General Services Administration Federal Supply Service (USA)
Related Parts
5136-00-187-8001INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-187-8004INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-187-8005INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-187-8008INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-187-8012INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-187-8014INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-187-8031INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-221-6112INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-228-0996INTERCHANGEABLE
TAP,THREAD CUTTING
54737
5136-00-262-1492INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-262-3961INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-262-3970INTERCHANGEABLE
TAP,THREAD CUTTING

Frequently Asked Questions

What is NSN 5136-00-187-8025?

NSN 5136-00-187-8025 is a Tap,thread Cutting, manufactured by Department of the Air Force, classified under FSC 5136 (No Item Name Available). Status: active.

What are the part numbers for NSN 5136-00-187-8025?

NSN 5136-00-187-8025 has 3 cross-referenced part numbers: 50250BTYPE1 (Department of the Air Force), GGG-T-70 (Federal Specifications Promulgated by General Services Administration Washington DC), GGG-T-70 TY1SEDSTA (General Services Administration Federal Supply Service).

What NSN replaces 5136-00-187-8025?

There are 12 known substitutes for 5136-00-187-8025: 5136-00-187-8001, 5136-00-187-8004, 5136-00-187-8005 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50250BTYPE1?

Key specifications for 50250BTYPE1: Shank Diameter: 1.302 INCHES MINIMUM AND 1.305 INCHES MAXIMUM IN; Length: 1.063 INCHES MINIMUM AND 1.187 INCHES MAXIMUM SQUARE END IN; Flute Quantity: 8; Thread Forming Method: GROUND. 27 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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