PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-59158Tang Breakoff Tool,screw Thread

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 5120-00-370-4027 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-370-4027 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-370-4027. Primary manufacturer part number: A-A-59158.
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: 7/16-14 UNIFIED NATIONAL COARSE (UNC)
  • Unit Type: AUTOMATIC SPRING ACTUATED PUNCH
  • Specification/standard Data: 81343-AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • 10 verified cross-references
  • Primary manufacturer: Federal Commercial Item Description Promulgated by General Services Administration Washington DC
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Tang Breakoff Tool,screw Thread, cataloged under National Stock Number 5120-00-370-4027, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 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: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-370-4027
Primary Part NumberA-A-59158
Item NameTang Breakoff Tool,screw Thread
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusCANCELLED
Nondefinitive Spec/std Data4 TYPE AND 1 CLASS AND B STYLE
Thread Size and Series/type Designator7/16-14 UNIFIED NATIONAL COARSE (UNC)
Unit TypeAUTOMATIC SPRING ACTUATED PUNCH
Specification/standard Data81343-AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-116-9596 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-370-4026 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-370-4028 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
5940-00-682-971736957 INTERCHANGEABLE
Splice,conductor
Te Connectivity Corporation
5330-00-788-362035957 INTERCHANGEABLE
Gasket
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
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
5930-01-286-57033-5957 INTERCHANGEABLE
Switch,thermostatic
Maytag Corporation Dba Maytag Appliancessales
Cross-Reference Index
Part NumberManufacturer
A-A-59158 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-59158 TY4CL1STB General Services Administration Federal Supply Service (USA)
AS59158 TY4CL1STB Society of Automotive Engineers Inc (USA)
3595-7 Stanley Engineered Fastening Llc (USA)
AS59158 Sae International Dba Sae International (USA)
3695-7 Stanley Engineered Fastening Llc (USA)
AS59158 TY4CL1STB Sae International Dba Sae International (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
AS59158 Society of Automotive Engineers Inc (USA)
Related Parts
5120-00-116-9596INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-370-4026INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-370-4028INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-370-4032INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-370-4033INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5940-00-682-9717INTERCHANGEABLE
SPLICE,CONDUCTOR
36957
5330-00-788-3620INTERCHANGEABLE
GASKET
35957
5120-00-793-1086INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-01-073-3298INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
3695-5
5930-01-286-5703INTERCHANGEABLE
SWITCH,THERMOSTATIC
3-5957
4720-01-347-7353INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
233442
4720-01-382-6579INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
234910

Frequently Asked Questions

What is NSN 5120-00-370-4027?

NSN 5120-00-370-4027 is a Tang Breakoff Tool,screw Thread, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-370-4027?

NSN 5120-00-370-4027 has 10 cross-referenced part numbers: A-A-59158 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-59158 TY4CL1STB (General Services Administration Federal Supply Service), AS59158 TY4CL1STB (Society of Automotive Engineers Inc), 3595-7 (Stanley Engineered Fastening Llc), AS59158 (Sae International Dba Sae International) and 5 more.

What NSN replaces 5120-00-370-4027?

There are 12 known substitutes for 5120-00-370-4027: 5120-00-116-9596, 5120-00-370-4026, 5120-00-370-4028 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-59158?

Key specifications for A-A-59158: Nondefinitive Spec/std Data: 4 TYPE AND 1 CLASS AND B STYLE; Thread Size and Series/type Designator: 7/16-14 UNIFIED NATIONAL COARSE (UNC); Unit Type: AUTOMATIC SPRING ACTUATED PUNCH; Specification/standard Data: 81343-AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-370-4027 still in active supply?

NSN 5120-00-370-4027 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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