PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AL12Key,socket Head Screw

Vaco Products Co · NSN 5120-00-239-9261 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-239-9261 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-239-9261. Primary manufacturer part number: AL12.
Features
  • Key,socket Head Screw — FSC 5120
  • Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL
  • Material: STEEL WRENCHING SURFACE
  • Surface Treatment: OXIDE WRENCHING SURFACE
  • Material: PLASTIC HANDLE
  • Style Designator: SCREWDRIVER HANDLE
  • Wrenching Surface Size: 0.188 INCHES NOMINAL SINGLE END IN
  • Blade Length: 3.250 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Wrenching Surface construction
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-00-239-9261, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Vaco Products Co. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-239-9261
Primary Part NumberAL12
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerVaco Products Co
StatusCANCELLED
Wrenching Surface ShapeHEXAGON SINGLE END EXTERNAL
MaterialSTEEL WRENCHING SURFACE
Surface TreatmentOXIDE WRENCHING SURFACE
MaterialPLASTIC HANDLE
Style DesignatorSCREWDRIVER HANDLE
Wrenching Surface Size0.188 INCHES NOMINAL SINGLE END IN
Blade Length3.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5120-00-243-1675 INTERCHANGEABLE
Screwdriver Attachment,socket Wr
2920-00-353-7267 INTERCHANGEABLE
Rotor,ignition Distributor
5950-00-907-38782047214 INTERCHANGEABLE
Form,coil
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3455-01-022-8467 INTERCHANGEABLE
Cutter Bit,tool Holder
3455-01-044-7951716-030119 INTERCHANGEABLE
Cutter,milling,end
Doall Baltimore Company
Cross-Reference Index
Part NumberManufacturer
AL12 Vaco Products Co (USA)
B18.3 The American Society of Mechanical Engineers (USA)
AL12 Klein Tools Inc (USA)
JTH6E11 Klein Tools Inc (USA)
Related Parts
5120-00-243-1675INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR
2920-00-353-7267INTERCHANGEABLE
ROTOR,IGNITION DISTRIBUTOR
5950-00-907-3878INTERCHANGEABLE
FORM,COIL
2047214
3455-01-022-8467INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
3455-01-044-7951INTERCHANGEABLE
CUTTER,MILLING,END
716-030119

Frequently Asked Questions

What is NSN 5120-00-239-9261?

NSN 5120-00-239-9261 is a Key,socket Head Screw, manufactured by Vaco Products Co, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-239-9261?

NSN 5120-00-239-9261 has 4 cross-referenced part numbers: AL12 (Vaco Products Co), B18.3 (The American Society of Mechanical Engineers), AL12 (Klein Tools Inc), JTH6E11 (Klein Tools Inc).

What NSN replaces 5120-00-239-9261?

There are 5 known substitutes for 5120-00-239-9261: 5120-00-243-1675, 2920-00-353-7267, 5950-00-907-3878 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AL12?

Key specifications for AL12: Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL; Material: STEEL WRENCHING SURFACE; Surface Treatment: OXIDE WRENCHING SURFACE; Material: PLASTIC HANDLE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-239-9261 still in active supply?

NSN 5120-00-239-9261 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.
PartsTable Design LLC · partstable.com