PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-T-70Tap,thread Cutting

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5136-00-821-1025 · FSC 5136 · No Item Name Available
Verified by PartsTable
NSN 5136-00-821-1025 — this item is cataloged by the U.S. Government under National Stock Number 5136-00-821-1025. Primary manufacturer part number: GGG-T-70.
Features
  • Tap,thread Cutting — FSC 5136
  • Thread Pitch Diameters: +0.0764 TO 0.0769 INCHES IN
  • Starting Chamfer Type: TAPER
  • Thread Forming Method: GROUND
  • Material: STEEL OVERALL
  • Thread Structure: REGULAR
  • Style Designator: STRAIGHT FLUTE
  • Width Across Flats: 0.110 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Tap,thread Cutting, cataloged under National Stock Number 5136-00-821-1025, is classified within Federal Supply Class 5136 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN5136-00-821-1025
Primary Part NumberGGG-T-70
Item NameTap,thread Cutting
FSC / FSG5136 / 51 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Thread Pitch Diameters+0.0764 TO 0.0769 INCHES IN
Starting Chamfer TypeTAPER
Thread Forming MethodGROUND
MaterialSTEEL OVERALL
Thread StructureREGULAR
Style DesignatorSTRAIGHT FLUTE
Width Across Flats0.110 INCHES NOMINAL IN
Thread Size and Series/type Designator0.086-64 UNF
Flute Quantity3
Length0.188 INCHES NOMINAL SQUARE END IN
Shank Diameter0.141 INCHES NOMINAL IN
Thread Length0.56 INCHES MINIMUM IN
Thread DirectionLEFT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5136-00-189-7826 INTERCHANGEABLE
Tap,thread Cutting
5136-00-889-6629 INTERCHANGEABLE
Tap,thread Cutting
5136-00-889-6987 INTERCHANGEABLE
Tap,thread Cutting
Cross-Reference Index
Part NumberManufacturer
GGG-T-70 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-T-70 TY1SEBSTA General Services Administration Federal Supply Service (USA)
B94.9 The American Society of Mechanical Engineers (USA)
B94.9 2-64 UNF HS G H1 General Services Administration Federal Supply Service (USA)
Related Parts
5136-00-189-7826INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-889-6629INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-889-6987INTERCHANGEABLE
TAP,THREAD CUTTING

Frequently Asked Questions

What is NSN 5136-00-821-1025?

NSN 5136-00-821-1025 is a Tap,thread Cutting, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5136 (No Item Name Available). Status: active.

What are the part numbers for NSN 5136-00-821-1025?

NSN 5136-00-821-1025 has 4 cross-referenced part numbers: GGG-T-70 (Federal Specifications Promulgated by General Services Administration Washington DC), GGG-T-70 TY1SEBSTA (General Services Administration Federal Supply Service), B94.9 (The American Society of Mechanical Engineers), B94.9 2-64 UNF HS G H1 (General Services Administration Federal Supply Service).

What NSN replaces 5136-00-821-1025?

There are 3 known substitutes for 5136-00-821-1025: 5136-00-189-7826, 5136-00-889-6629, 5136-00-889-6987. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-T-70?

Key specifications for GGG-T-70: Thread Pitch Diameters: +0.0764 TO 0.0769 INCHES IN; Starting Chamfer Type: TAPER; Overall Length: 1.750 INCHES NOMINAL IN; Thread Forming Method: GROUND. 14 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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