PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-T-70 TY1SECSTATap,thread Cutting

General Services Administration Federal Supply Service · NSN 5136-00-187-8031 · FSC 5136 · No Item Name Available
Verified by PartsTable
NSN 5136-00-187-8031 — this item is cataloged by the U.S. Government under National Stock Number 5136-00-187-8031. Primary manufacturer part number: GGG-T-70 TY1SECSTA.
Features
  • Tap,thread Cutting — FSC 5136
  • Starting Chamfer Type: TAPER
  • Nondefinitive Spec/std Data: 1 TYPE AND C SERIES AND A STYLE
  • Material: STEEL OVERALL
  • Thread Structure: REGULAR
  • Length: 1.375 INCHES NOMINAL SQUARE END IN
  • Width Across Flats: 1.233 INCHES NOMINAL IN
  • Starting Chamfer Type: TAPER
Applications
  • Applications requiring Steel Overall construction
General Description

The Tap,thread Cutting, cataloged under National Stock Number 5136-00-187-8031, is classified within Federal Supply Class 5136 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is General Services Administration Federal Supply Service. Government technical data includes 27 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
NSN5136-00-187-8031
Primary Part NumberGGG-T-70 TY1SECSTA
Item NameTap,thread Cutting
FSC / FSG5136 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Starting Chamfer TypeTAPER
Nondefinitive Spec/std Data1 TYPE AND C SERIES AND A STYLE
MaterialSTEEL OVERALL
Thread StructureREGULAR
Length1.375 INCHES NOMINAL SQUARE END IN
Width Across Flats1.233 INCHES NOMINAL IN
Starting Chamfer TypeTAPER
Thread Forming MethodGROUND
Flute Quantity6 OR 8
Departure From Cited DesignatorAS MOD BY THD PITCH DIA
Style DesignatorSTRAIGHT FLUTE
Thread Size and Series/type Designator2.000-64 UNS
Flute Quantity6 OR 8
Thread Length2.000 INCHES NOMINAL IN
Width Across Flats1.233 INCHES NOMINAL IN
Thread Pitch Diameters+1.9639 TO 1.9706 INCHES IN
MaterialSTEEL OVERALL
Departure From Cited DesignatorAS MOD BY THD PITCH DIA
Style DesignatorSTRAIGHT FLUTE
Thread DirectionRIGHT-HAND
Thread Size and Series/type Designator2.000-64 UNS
Thread StructureREGULAR
Nondefinitive Spec/std Data1 TYPE AND C SERIES AND A STYLE
Thread Length2.000 INCHES NOMINAL IN
Shank Diameter1.644 INCHES NOMINAL IN
Length1.375 INCHES NOMINAL SQUARE END IN
Shank Diameter1.644 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5136-00-187-8008 INTERCHANGEABLE
Tap,thread Cutting
5136-00-187-8025 INTERCHANGEABLE
Tap,thread Cutting
5136-00-228-099654737 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
5136-00-255-9228 INTERCHANGEABLE
Tap,thread Cutting
5136-00-255-923941T10312-935 INTERCHANGEABLE
Tap,thread Cutting
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5136-00-262-3961 INTERCHANGEABLE
Tap,thread Cutting
5136-00-262-3970 INTERCHANGEABLE
Tap,thread Cutting
5136-00-272-9702 INTERCHANGEABLE
Tap,thread Cutting
5136-00-272-9707 INTERCHANGEABLE
Tap,thread Cutting
5136-00-272-9755 INTERCHANGEABLE
Tap,thread Cutting
Cross-Reference Index
Part NumberManufacturer
GGG-T-70 TY1SECSTA General Services Administration Federal Supply Service (USA)
50250BTYPE1 Department of the Air Force (USA)
GGG-T-70 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5136-00-187-8008INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-187-8025INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-228-0996INTERCHANGEABLE
TAP,THREAD CUTTING
54737
5136-00-255-9228INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-255-9239INTERCHANGEABLE
TAP,THREAD CUTTING
41T10312-935
5136-00-262-3961INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-262-3970INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-272-9702INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-272-9707INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-272-9755INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-516-3361INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-821-1026INTERCHANGEABLE
TAP,THREAD CUTTING

Frequently Asked Questions

What is NSN 5136-00-187-8031?

NSN 5136-00-187-8031 is a Tap,thread Cutting, manufactured by General Services Administration Federal Supply Service, classified under FSC 5136 (No Item Name Available). Status: active.

What are the part numbers for NSN 5136-00-187-8031?

NSN 5136-00-187-8031 has 3 cross-referenced part numbers: GGG-T-70 TY1SECSTA (General Services Administration Federal Supply Service), 50250BTYPE1 (Department of the Air Force), GGG-T-70 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5136-00-187-8031?

There are 12 known substitutes for 5136-00-187-8031: 5136-00-187-8008, 5136-00-187-8025, 5136-00-228-0996 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-T-70 TY1SECSTA?

Key specifications for GGG-T-70 TY1SECSTA: Overall Length: 5.000 INCHES NOMINAL IN; Starting Chamfer Type: TAPER; Overall Length: 5.000 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 1 TYPE AND C SERIES AND A STYLE. 29 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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