PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-59158 TY4CL2Tang Breakoff Tool,screw Thread

General Services Administration Federal Supply Service · NSN 5120-00-937-9734 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-937-9734 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-937-9734. Primary manufacturer part number: A-A-59158 TY4CL2.
Features
  • Tang Breakoff Tool,screw Thread — FSC 5120
  • Unit Type: SOLID PUNCH
  • Nondefinitive Spec/std Data: 4 TYPE AND 2 CLASS
  • Specification/standard Data: 0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Thread Size and Series/type Designator: 7/16-14 UNIFIED NATIONAL COARSE (UNC) AND 7/16-20 UNF
  • 8 verified cross-references
  • Primary manufacturer: General Services Administration Federal Supply Service
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Tang Breakoff Tool,screw Thread, cataloged under National Stock Number 5120-00-937-9734, is classified within Federal Supply Class 5120 (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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 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
NSN5120-00-937-9734
Primary Part NumberA-A-59158 TY4CL2
Item NameTang Breakoff Tool,screw Thread
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Unit TypeSOLID PUNCH
Nondefinitive Spec/std Data4 TYPE AND 2 CLASS
Specification/standard Data0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Thread Size and Series/type Designator7/16-14 UNIFIED NATIONAL COARSE (UNC) AND 7/16-20 UNF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6615-00-075-408041567 INTERCHANGEABLE
Bracket,gyro Mounti
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5120-00-370-4025 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-544-9174 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-711-7475 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-776-7264 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-935-45404156-04 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
Stanley Engineered Fastening Llc
5120-00-935-4541 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-937-97294156-2 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
Stanley Engineered Fastening Llc
5120-00-937-9730 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-937-9731 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
Cross-Reference Index
Part NumberManufacturer
A-A-59158 TY4CL2 General Services Administration Federal Supply Service (USA)
AS59158 Sae International Dba Sae International (USA)
MIL-T-21309 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AS59158 Society of Automotive Engineers Inc (USA)
A-A-59158 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AS59158 TY4CL2 General Services Administration Federal Supply Service (USA)
4156-7 Stanley Engineered Fastening Llc (USA)
MIL-T-21309 TY4CL2 General Services Administration Federal Supply Service (USA)
Related Parts
6615-00-075-4080INTERCHANGEABLE
BRACKET,GYRO MOUNTI
41567
5120-00-370-4025INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-544-9174INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-711-7475INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-776-7264INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-935-4540INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
4156-04
5120-00-935-4541INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-937-9729INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
4156-2
5120-00-937-9730INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-937-9731INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-937-9732INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-937-9733INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD

Frequently Asked Questions

What is NSN 5120-00-937-9734?

NSN 5120-00-937-9734 is a Tang Breakoff Tool,screw Thread, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-937-9734?

NSN 5120-00-937-9734 has 8 cross-referenced part numbers: A-A-59158 TY4CL2 (General Services Administration Federal Supply Service), AS59158 (Sae International Dba Sae International), MIL-T-21309 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AS59158 (Society of Automotive Engineers Inc), A-A-59158 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 3 more.

What NSN replaces 5120-00-937-9734?

There are 12 known substitutes for 5120-00-937-9734: 6615-00-075-4080, 5120-00-370-4025, 5120-00-544-9174 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-59158 TY4CL2?

Key specifications for A-A-59158 TY4CL2: Unit Type: SOLID PUNCH; Nondefinitive Spec/std Data: 4 TYPE AND 2 CLASS; Specification/standard Data: 0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Thread Size and Series/type Designator: 7/16-14 UNIFIED NATIONAL COARSE (UNC) AND 7/16-20 UNF. 4 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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