PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-T-581Tap,thread Cutting

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5136-00-237-8149 · FSC 5136 · No Item Name Available
Verified by PartsTable
NSN 5136-00-237-8149 — this item is cataloged by the U.S. Government under National Stock Number 5136-00-237-8149. Primary manufacturer part number: GGG-T-581.
Features
  • Tap,thread Cutting — FSC 5136
  • Thread Length: 1.750 INCHES NOMINAL IN
  • Thread Size and Series/type Designator: 1.250-11-1/2 NPT
  • Style Designator: STRAIGHT FLUTE
  • Flute Quantity: 5
  • Starting Chamfer Type: TAPER
  • Thread Structure: REGULAR
  • Specification/standard Data: 05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Tap,thread Cutting, cataloged under National Stock Number 5136-00-237-8149, 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 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: Cancelled.

Technical Specifications
ParameterValue
NSN5136-00-237-8149
Primary Part NumberGGG-T-581
Item NameTap,thread Cutting
FSC / FSG5136 / 51 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Thread Length1.750 INCHES NOMINAL IN
Thread Size and Series/type Designator1.250-11-1/2 NPT
Style DesignatorSTRAIGHT FLUTE
Flute Quantity5
Starting Chamfer TypeTAPER
Thread StructureREGULAR
Specification/standard Data05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Thread Forming MethodGROUND
Width Across Flats0.984 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Length1.125 INCHES NOMINAL SQUARE END IN
Shank Diameter1.312 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-155-493521RVNL172AX1-203-06 INTERCHANGEABLE
Washer,lock
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5136-00-189-7800 INTERCHANGEABLE
Tap,thread Cutting
5136-00-189-7801 INTERCHANGEABLE
Tap,thread Cutting
5136-00-189-7805385331 INTERCHANGEABLE
Tap,thread Cutting
Greenfield Industries Inc
5136-00-189-7806 INTERCHANGEABLE
Tap,thread Cutting
5136-00-189-7807 INTERCHANGEABLE
Tap,thread Cutting
5136-00-189-7808 INTERCHANGEABLE
Tap,thread Cutting
5136-00-237-8147 INTERCHANGEABLE
Tap,thread Cutting
5136-00-237-8148 INTERCHANGEABLE
Tap,thread Cutting
2540-00-351-0153A14115 INTERCHANGEABLE
Tarpaulin
Am General Llc
Cross-Reference Index
Part NumberManufacturer
GGG-T-581 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-364 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B94.9 The American Society of Mechanical Engineers (USA)
GGG-T-581 TY1CL1 General Services Administration Federal Supply Service (USA)
14115 Bendix Corp the Industrial Tools Div South Beloit Plant (USA)
Related Parts
5310-00-155-4935INTERCHANGEABLE
WASHER,LOCK
21RVNL172AX1-203-06
5136-00-189-7800INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-189-7801INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-189-7805INTERCHANGEABLE
TAP,THREAD CUTTING
385331
5136-00-189-7806INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-189-7807INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-189-7808INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-237-8147INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-237-8148INTERCHANGEABLE
TAP,THREAD CUTTING
2540-00-351-0153INTERCHANGEABLE
TARPAULIN
A14115
5136-00-596-1205INTERCHANGEABLE
TAP SET,THREAD CUTTING
5330-00-796-4403INTERCHANGEABLE
SEAL,PLAIN
14115

Frequently Asked Questions

What is NSN 5136-00-237-8149?

NSN 5136-00-237-8149 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: cancelled.

What are the part numbers for NSN 5136-00-237-8149?

NSN 5136-00-237-8149 has 5 cross-referenced part numbers: GGG-T-581 (Federal Specifications Promulgated by General Services Administration Washington DC), A-A-364 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), B94.9 (The American Society of Mechanical Engineers), GGG-T-581 TY1CL1 (General Services Administration Federal Supply Service), 14115 (Bendix Corp the Industrial Tools Div South Beloit Plant).

What NSN replaces 5136-00-237-8149?

There are 12 known substitutes for 5136-00-237-8149: 5310-00-155-4935, 5136-00-189-7800, 5136-00-189-7801 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-T-581?

Key specifications for GGG-T-581: Thread Length: 1.750 INCHES NOMINAL IN; Thread Size and Series/type Designator: 1.250-11-1/2 NPT; Overall Length: 4.000 INCHES NOMINAL IN; Style Designator: STRAIGHT FLUTE. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5136-00-237-8149 still in active supply?

NSN 5136-00-237-8149 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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