PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-T-21309Tool Kit,screw Thread Insert

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5180-00-051-5026 · FSC 5180 · No Item Name Available
Verified by PartsTable
NSN 5180-00-051-5026 — this item is cataloged by the U.S. Government under National Stock Number 5180-00-051-5026. Primary manufacturer part number: MIL-T-21309.
Features
  • Tool Kit,screw Thread Insert — FSC 5180
  • Furnished Items: METAL BOX
  • Component Quantity: 12
  • Specification/standard Data: 0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nonsupply Items and Quantities: CONTAINS 1-8 UNC (1.500 IN. LG) FREE RUNNING INSERTS (4); 1-8 UNC (1.500 IN. LG) SCREW-LOCKING INSERTS (4); STI TAP (1); INSTALLATION TOOL (1); EXTRACTOR TOOL (1) IN
  • 5 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Tool Kit,screw Thread Insert, cataloged under National Stock Number 5180-00-051-5026, is classified within Federal Supply Class 5180 (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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5180-00-051-5026
Primary Part NumberMIL-T-21309
Item NameTool Kit,screw Thread Insert
FSC / FSG5180 / 51 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Furnished ItemsMETAL BOX
Component Quantity12
Specification/standard Data0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nonsupply Items and QuantitiesCONTAINS 1-8 UNC (1.500 IN. LG) FREE RUNNING INSERTS (4); 1-8 UNC (1.500 IN. LG) SCREW-LOCKING INSERTS (4); STI TAP (1); INSTALLATION TOOL (1); EXTRACTOR TOOL (1) IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5930-01-030-5162 INTERCHANGEABLE
Switch,sensitive
2910-01-038-15094049337 INTERCHANGEABLE
Pump,fuel,cam Actuated
Chrysler Corp Service and Parts Opns
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 Society of Automotive Engineers Inc (USA)
KIT18GS Helical Wire Inc (USA)
AS59158 Sae International Dba Sae International (USA)
4131-16-1 Stanley Engineered Fastening Llc (USA)
Related Parts
5930-01-030-5162INTERCHANGEABLE
SWITCH,SENSITIVE
2910-01-038-1509INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
4049337

Frequently Asked Questions

What is NSN 5180-00-051-5026?

NSN 5180-00-051-5026 is a Tool Kit,screw Thread Insert, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5180 (No Item Name Available). Status: active.

What are the part numbers for NSN 5180-00-051-5026?

NSN 5180-00-051-5026 has 5 cross-referenced part numbers: 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), KIT18GS (Helical Wire Inc), AS59158 (Sae International Dba Sae International), 4131-16-1 (Stanley Engineered Fastening Llc).

What NSN replaces 5180-00-051-5026?

There are 2 known substitutes for 5180-00-051-5026: 5930-01-030-5162, 2910-01-038-1509. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-T-21309?

Key specifications for MIL-T-21309: Furnished Items: METAL BOX; Component Quantity: 12; Specification/standard Data: 0U583-SAE AS59158 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Special Features: HELICAL COIL WIRE INSERTS. 5 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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