PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-T-21309 TY1CL2Tap,thread Cutting

General Services Administration Federal Supply Service · NSN 5136-00-987-9084 · FSC 5136 · No Item Name Available
Verified by PartsTable
NSN 5136-00-987-9084 — this item is cataloged by the U.S. Government under National Stock Number 5136-00-987-9084. Primary manufacturer part number: MIL-T-21309 TY1CL2.
Features
  • Tap,thread Cutting — FSC 5136
  • Starting Chamfer Type: PLUG
  • Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS
  • Material: STEEL OVERALL
  • Length: 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM SQUARE END IN
  • Thread Size and Series/type Designator: 0.750-10 STI
  • Thread Forming Method: GROUND
  • Style Designator: STRAIGHT FLUTE
Applications
  • Applications requiring Steel Overall construction
General Description

The Tap,thread Cutting, cataloged under National Stock Number 5136-00-987-9084, 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 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: Active.

Technical Specifications
ParameterValue
NSN5136-00-987-9084
Primary Part NumberMIL-T-21309 TY1CL2
Item NameTap,thread Cutting
FSC / FSG5136 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Starting Chamfer TypePLUG
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS
MaterialSTEEL OVERALL
Length0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM SQUARE END IN
Thread Size and Series/type Designator0.750-10 STI
Thread Forming MethodGROUND
Style DesignatorSTRAIGHT FLUTE
Flute Quantity4
Width Across Flats0.523 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN
Thread StructureREGULAR
Thread Length2.125 INCHES MINIMUM AND 2.313 INCHES MAXIMUM IN
Shank Diameter0.695 INCHES MINIMUM AND 0.699 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Pitch Diameters+0.8159 TO 0.8164 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5136-00-104-4147 INTERCHANGEABLE
Tap,thread Cutting
5136-00-104-4158 INTERCHANGEABLE
Tap,thread Cutting
5136-00-104-4159 INTERCHANGEABLE
Tap,thread Cutting
5136-00-134-75426CRU INTERCHANGEABLE
Tap,thread Cutting
Stanley Engineered Fastening Llc
5136-00-255-994841T1368-1895 INTERCHANGEABLE
Tap,thread Cutting
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5136-00-370-40407CRU INTERCHANGEABLE
Tap,thread Cutting
Stanley Engineered Fastening Llc
5136-00-370-4041 INTERCHANGEABLE
Tap,thread Cutting
5136-00-370-4064 INTERCHANGEABLE
Tap,thread Cutting
5136-00-370-4065 INTERCHANGEABLE
Tap,thread Cutting
5136-00-370-4066 INTERCHANGEABLE
Tap,thread Cutting
Cross-Reference Index
Part NumberManufacturer
MIL-T-21309 TY1CL2 General Services Administration Federal Supply Service (USA)
A-A-59158 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
12CRU Stanley Engineered Fastening Llc (USA)
MIL-T-21309 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A-A-59158 TY1CL2 General Services Administration Federal Supply Service (USA)
Related Parts
5136-00-104-4147INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-104-4158INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-104-4159INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-134-7542INTERCHANGEABLE
TAP,THREAD CUTTING
6CRU
5136-00-255-9948INTERCHANGEABLE
TAP,THREAD CUTTING
41T1368-1895
5136-00-370-4040INTERCHANGEABLE
TAP,THREAD CUTTING
7CRU
5136-00-370-4041INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-370-4064INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-370-4065INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-370-4066INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-370-4067INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-825-7146INTERCHANGEABLE
TAP,THREAD CUTTING
6FRU

Frequently Asked Questions

What is NSN 5136-00-987-9084?

NSN 5136-00-987-9084 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 5136-00-987-9084?

NSN 5136-00-987-9084 has 5 cross-referenced part numbers: MIL-T-21309 TY1CL2 (General Services Administration Federal Supply Service), A-A-59158 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 12CRU (Stanley Engineered Fastening Llc), MIL-T-21309 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A-A-59158 TY1CL2 (General Services Administration Federal Supply Service).

What NSN replaces 5136-00-987-9084?

There are 12 known substitutes for 5136-00-987-9084: 5136-00-104-4147, 5136-00-104-4158, 5136-00-104-4159 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-T-21309 TY1CL2?

Key specifications for MIL-T-21309 TY1CL2: Starting Chamfer Type: PLUG; Overall Length: 4.657 INCHES MINIMUM AND 4.719 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS; Material: STEEL OVERALL. 16 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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