PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS59158Tang Breakoff Tool,screw Thread

Sae International Dba Sae International · NSN 5120-00-370-4026 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-370-4026 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-370-4026. Primary manufacturer part number: AS59158.
Features
  • Tang Breakoff Tool,screw Thread — FSC 5120
  • Nondefinitive Spec/std Data: 4 TYPE AND 1 CLASS AND B STYLE
  • Specification/standard Data: 0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Unit Type: AUTOMATIC SPRING ACTUATED PUNCH
  • Thread Size and Series/type Designator: 3/8-16 UNIFIED NATIONAL COARSE (UNC)
  • 8 verified cross-references
  • Primary manufacturer: Sae International Dba Sae International
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Tang Breakoff Tool,screw Thread, cataloged under National Stock Number 5120-00-370-4026, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Sae International Dba Sae International. 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-370-4026
Primary Part NumberAS59158
Item NameTang Breakoff Tool,screw Thread
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Nondefinitive Spec/std Data4 TYPE AND 1 CLASS AND B STYLE
Specification/standard Data0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Unit TypeAUTOMATIC SPRING ACTUATED PUNCH
Thread Size and Series/type Designator3/8-16 UNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5120-00-116-9596 INTERCHANGEABLE
Tang Breakoff Tool,screw Thread
5120-00-370-4027 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
5950-00-646-121223421 INTERCHANGEABLE
Transformer,power
L3harris Technologies, Inc Div Space & Airborne Systems
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
4710-01-128-799936956 INTERCHANGEABLE
Tube,gas Start
Williams International Co., L.l.c.
3120-01-416-502236956 INTERCHANGEABLE
Bearing,sleeve
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
AS59158 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
A-A-59158 TY4CL1STB General Services Administration Federal Supply Service (USA)
3695-6 Stanley Engineered Fastening Llc (USA)
AS59158 TY4CL1STB General Services Administration Federal Supply Service (USA)
A-A-59158 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AS59158 Society of Automotive Engineers Inc (USA)
Related Parts
5120-00-116-9596INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-00-370-4027INTERCHANGEABLE
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
5950-00-646-1212INTERCHANGEABLE
TRANSFORMER,POWER
23421
5120-00-793-1086INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
5120-01-073-3298INTERCHANGEABLE
TANG BREAKOFF TOOL,SCREW THREAD
3695-5
4710-01-128-7999INTERCHANGEABLE
TUBE,GAS START
36956
3120-01-416-5022INTERCHANGEABLE
BEARING,SLEEVE
36956

Frequently Asked Questions

What is NSN 5120-00-370-4026?

NSN 5120-00-370-4026 is a Tang Breakoff Tool,screw Thread, manufactured by Sae International Dba Sae International, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-370-4026?

NSN 5120-00-370-4026 has 8 cross-referenced part numbers: AS59158 (Sae International Dba Sae International), 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 TY4CL1STB (General Services Administration Federal Supply Service), 3695-6 (Stanley Engineered Fastening Llc) and 3 more.

What NSN replaces 5120-00-370-4026?

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

What are the specifications of AS59158?

Key specifications for AS59158: Nondefinitive Spec/std Data: 4 TYPE AND 1 CLASS AND B STYLE; Specification/standard Data: 0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Unit Type: AUTOMATIC SPRING ACTUATED PUNCH; Thread Size and Series/type Designator: 3/8-16 UNIFIED NATIONAL COARSE (UNC). 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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