PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-59158 TY4CL1STBTang Breakoff Tool,screw Thread

General Services Administration Federal Supply Service · NSN 5120-00-370-4028 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-370-4028 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-370-4028. Primary manufacturer part number: A-A-59158 TY4CL1STB.
Features
  • Tang Breakoff Tool,screw Thread — FSC 5120
  • Nondefinitive Spec/std Data: 4 TYPE AND 1 CLASS AND B STYLE
  • Thread Size and Series/type Designator: 1/2-13 UNIFIED NATIONAL COARSE (UNC)
  • Unit Type: AUTOMATIC SPRING ACTUATED PUNCH
  • 5 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 5120-00-370-4028, 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 3 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-370-4028
Primary Part NumberA-A-59158 TY4CL1STB
Item NameTang Breakoff Tool,screw Thread
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Nondefinitive Spec/std Data4 TYPE AND 1 CLASS AND B STYLE
Thread Size and Series/type Designator1/2-13 UNIFIED NATIONAL COARSE (UNC)
Unit TypeAUTOMATIC SPRING ACTUATED PUNCH
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5120-00-116-9596 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-370-4026 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-370-4027 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-370-4032 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-370-4033 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-793-1086 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-01-073-32983695-5 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
Stanley Engineered Fastening Llc
4720-01-382-658731-AA4-4-9IN SS INTERCHANGEABLE
Hose Assembly,nonmetallic
Allied Systems Company Dba Allied Systems Co
4720-01-382-6724234729 INTERCHANGEABLE
Hose Assembly,nonmetallic
Allied Systems Company Dba Allied Systems Co
4720-01-383-2255234730 INTERCHANGEABLE
Hose Assembly,nonmetallic
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
A-A-59158 TY4CL1STB General Services Administration Federal Supply Service (USA)
3595-8 Stanley Engineered Fastening Llc (USA)
MIL-T-21309 TY4CL1STB General Services Administration Federal Supply Service (USA)
MIL-T-21309 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A-A-59158 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
5120-00-116-9596INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-370-4026INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-370-4027INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-370-4032INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-370-4033INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-793-1086INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-01-073-3298INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
3695-5
4720-01-382-6587INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
31-AA4-4-9IN SS
4720-01-382-6724INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
234729
4720-01-383-2255INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
234730

Frequently Asked Questions

What is NSN 5120-00-370-4028?

NSN 5120-00-370-4028 is a Tang Breakoff Tool,screw Thread, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-370-4028?

NSN 5120-00-370-4028 has 5 cross-referenced part numbers: A-A-59158 TY4CL1STB (General Services Administration Federal Supply Service), 3595-8 (Stanley Engineered Fastening Llc), MIL-T-21309 TY4CL1STB (General Services Administration Federal Supply Service), MIL-T-21309 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A-A-59158 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 5120-00-370-4028?

There are 10 known substitutes for 5120-00-370-4028: 5120-00-116-9596, 5120-00-370-4026, 5120-00-370-4027 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-59158 TY4CL1STB?

Key specifications for A-A-59158 TY4CL1STB: Nondefinitive Spec/std Data: 4 TYPE AND 1 CLASS AND B STYLE; Thread Size and Series/type Designator: 1/2-13 UNIFIED NATIONAL COARSE (UNC); Unit Type: AUTOMATIC SPRING ACTUATED PUNCH. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-370-4028 still in active supply?

NSN 5120-00-370-4028 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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