PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-T-21309Tap,thread Cutting

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5136-00-779-4469 · FSC 5136 · No Item Name Available
Verified by PartsTable
NSN 5136-00-779-4469 — this item is cataloged by the U.S. Government under National Stock Number 5136-00-779-4469. Primary manufacturer part number: MIL-T-21309.
Features
  • Tap,thread Cutting — FSC 5136
  • Thread Pitch Diameters: +0.1588 TO 0.1593 INCHES IN
  • Thread Size and Series/type Designator: 0.138-32 STI
  • Nondefinitive Spec/std Data: 1 TYPE AND 3 CLASS
  • Flute Quantity: 3
  • Specification/standard Data: 0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Starting Chamfer Type: BOTTOMING
  • Style Designator: STRAIGHT FLUTE
Applications
  • Applications requiring Steel Overall construction
General Description

The Tap,thread Cutting, cataloged under National Stock Number 5136-00-779-4469, is classified within Federal Supply Class 5136 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5136-00-779-4469
Primary Part NumberMIL-T-21309
Item NameTap,thread Cutting
FSC / FSG5136 / 51 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Thread Pitch Diameters+0.1588 TO 0.1593 INCHES IN
Thread Size and Series/type Designator0.138-32 STI
Nondefinitive Spec/std Data1 TYPE AND 3 CLASS
Flute Quantity3
Specification/standard Data0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Starting Chamfer TypeBOTTOMING
Style DesignatorSTRAIGHT FLUTE
Thread Forming MethodGROUND
Length0.250 INCHES NOMINAL SQUARE END IN
Width Across Flats0.152 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Thread StructureREGULAR
Thread Length0.875 INCHES NOMINAL IN
Shank Diameter0.194 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5136-00-838-0284 INTERCHANGEABLE
Tap,thread Cutting
5136-00-902-7893 INTERCHANGEABLE
Tap,thread Cutting
5136-00-935-4537 INTERCHANGEABLE
Tap,thread Cutting
5136-00-972-0399 INTERCHANGEABLE
Tap,thread Cutting
5136-00-972-0400 INTERCHANGEABLE
Tap,thread Cutting
5136-00-972-0405 INTERCHANGEABLE
Tap,thread Cutting
5136-00-972-0406 INTERCHANGEABLE
Tap,thread Cutting
5136-00-972-0407 INTERCHANGEABLE
Tap,thread Cutting
5136-00-987-9141 INTERCHANGEABLE
Tap,thread Cutting
5136-01-108-6915 INTERCHANGEABLE
Tap,thread Cutting
Cross-Reference Index
Part NumberManufacturer
MIL-T-21309 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AS59158 Sae International Dba Sae International (USA)
AS59158 TY1CL3 General Services Administration Federal Supply Service (USA)
MIL-T-21309 TY1CL3 General Services Administration Federal Supply Service (USA)
A-A-59158 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
06CBB Stanley Engineered Fastening Llc (USA)
A-A-59158 TY1CL3 General Services Administration Federal Supply Service (USA)
AS59158 Society of Automotive Engineers Inc (USA)
27187-06 Stanley Engineered Fastening Llc (USA)
Related Parts
5136-00-838-0284INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-902-7893INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-935-4537INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-972-0399INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-972-0400INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-972-0405INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-972-0406INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-972-0407INTERCHANGEABLE
TAP,THREAD CUTTING
5136-00-987-9141INTERCHANGEABLE
TAP,THREAD CUTTING
5136-01-108-6915INTERCHANGEABLE
TAP,THREAD CUTTING
5136-01-144-7855INTERCHANGEABLE
TAP,THREAD CUTTING

Frequently Asked Questions

What is NSN 5136-00-779-4469?

NSN 5136-00-779-4469 is a Tap,thread Cutting, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5136 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5136-00-779-4469?

NSN 5136-00-779-4469 has 9 cross-referenced part numbers: MIL-T-21309 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AS59158 (Sae International Dba Sae International), AS59158 TY1CL3 (General Services Administration Federal Supply Service), MIL-T-21309 TY1CL3 (General Services Administration Federal Supply Service), A-A-59158 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 4 more.

What NSN replaces 5136-00-779-4469?

There are 11 known substitutes for 5136-00-779-4469: 5136-00-838-0284, 5136-00-902-7893, 5136-00-935-4537 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-T-21309?

Key specifications for MIL-T-21309: Thread Pitch Diameters: +0.1588 TO 0.1593 INCHES IN; Thread Size and Series/type Designator: 0.138-32 STI; Nondefinitive Spec/std Data: 1 TYPE AND 3 CLASS; Overall Length: 2.375 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5136-00-779-4469 still in active supply?

NSN 5136-00-779-4469 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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