PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B94.9Tap,thread Cutting

The American Society of Mechanical Engineers · NSN 5136-00-889-6976 · FSC 5136 · No Item Name Available
Verified by PartsTable
NSN 5136-00-889-6976 — this item is cataloged by the U.S. Government under National Stock Number 5136-00-889-6976. Primary manufacturer part number: B94.9.
Features
  • Tap,thread Cutting — FSC 5136
  • Starting Chamfer Type: PLUG
  • Thread Direction: RIGHT-HAND
  • Thread Length: 1.625 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
  • Specification/standard Data: 05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Width Across Flats: 1.117 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
  • Departure From Cited Designator: AS MODIFIED BY FLUTE QUANTITY
  • Thread Structure: REGULAR
Applications
  • Applications requiring Steel Overall construction
General Description

The Tap,thread Cutting, cataloged under National Stock Number 5136-00-889-6976, is classified within Federal Supply Class 5136 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5136-00-889-6976
Primary Part NumberB94.9
Item NameTap,thread Cutting
FSC / FSG5136 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Starting Chamfer TypePLUG
Thread DirectionRIGHT-HAND
Thread Length1.625 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
Specification/standard Data05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Width Across Flats1.117 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Departure From Cited DesignatorAS MODIFIED BY FLUTE QUANTITY
Thread StructureREGULAR
Thread Forming MethodGROUND
MaterialSTEEL OVERALL
Style DesignatorSTRAIGHT FLUTE
Flute Quantity6
Length0.938 INCHES MINIMUM AND 1.062 INCHES MAXIMUM SQUARE END IN
Thread Size and Series/type Designator1.500-11-1/2 NPT
Shank Diameter1.497 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
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
5136-00-237-8149 INTERCHANGEABLE
Tap,thread Cutting
5136-00-596-1205 INTERCHANGEABLE
Tap Set,thread Cutting
Cross-Reference Index
Part NumberManufacturer
B94.9 The American Society of Mechanical Engineers (USA)
B94.9 1-1/2-11-1/2 NPT HS G General Services Administration Federal Supply Service (USA)
GGG-T-581 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-T-581 TY1CL1 General Services Administration Federal Supply Service (USA)
A-A-364 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
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
5136-00-237-8149INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-596-1205INTERCHANGEABLE
TAP SET,THREAD CUTTING
5136-00-889-5309INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-889-5316INTERCHANGEABLE
TAP,THREAD CUTTING

Frequently Asked Questions

What is NSN 5136-00-889-6976?

NSN 5136-00-889-6976 is a Tap,thread Cutting, manufactured by The American Society of Mechanical Engineers, classified under FSC 5136 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5136-00-889-6976?

NSN 5136-00-889-6976 has 5 cross-referenced part numbers: B94.9 (The American Society of Mechanical Engineers), B94.9 1-1/2-11-1/2 NPT HS G (General Services Administration Federal Supply Service), GGG-T-581 (Federal Specifications Promulgated by General Services Administration Washington DC), GGG-T-581 TY1CL1 (General Services Administration Federal Supply Service), A-A-364 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 5136-00-889-6976?

There are 12 known substitutes for 5136-00-889-6976: 5136-00-189-7800, 5136-00-189-7801, 5136-00-189-7805 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B94.9?

Key specifications for B94.9: Starting Chamfer Type: PLUG; Thread Direction: RIGHT-HAND; Thread Length: 1.625 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN; Overall Length: 4.188 INCHES MINIMUM AND 4.312 INCHES MAXIMUM IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5136-00-889-6976 still in active supply?

NSN 5136-00-889-6976 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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