PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11981Extension,socket Wrench

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-01-430-7985 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-430-7985 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-430-7985. Primary manufacturer part number: 11981.
Features
  • Extension,socket Wrench — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Features Provided: MANUAL TOOL
  • Material: STEEL OVERALL
  • Drive End Shape: SQUARE FIRST END INTERNAL
  • Drive Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN
  • Drive End Shape: SQUARE SECOND END EXTERNAL
  • Style Designator: RIGID
Applications
  • Applications requiring Steel Overall construction
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-01-430-7985, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5120-01-430-7985
Primary Part Number11981
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEasco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.
StatusCANCELLED
Surface TreatmentCHROMIUM OVERALL
Features ProvidedMANUAL TOOL
MaterialSTEEL OVERALL
Drive End ShapeSQUARE FIRST END INTERNAL
Drive Surface Size0.375 INCHES NOMINAL BOTH ENDS IN
Drive End ShapeSQUARE SECOND END EXTERNAL
Style DesignatorRIGID
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5815-00-243-8497SC-C-69626 INTERCHANGEABLE
Teletypewriter Subassembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-283-44331981584-1 INTERCHANGEABLE
Reactor
Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems
6660-00-663-81211198-1 INTERCHANGEABLE
Meteorological Station,manual
Entron Industries Limited Partnership Dba Entron Industries Property Div
5950-00-706-9437 INTERCHANGEABLE
Coil,radio Frequency
5930-00-864-67972134838 INTERCHANGEABLE
Switch,rotary
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5930-00-967-4499 INTERCHANGEABLE
Insert,push Button
5998-01-103-5087 INTERCHANGEABLE
Circuit Card Assembly
4720-01-211-089211981 INTERCHANGEABLE
Hose
Westerbeke Corporation
6145-01-356-014411981 INTERCHANGEABLE
Cable,special Purpose,electrical
Nexans Aerospace Usa Llc
7025-01-475-806511981 INTERCHANGEABLE
Keyboard,data Entry
Ap Labs, Inc.
Cross-Reference Index
Part NumberManufacturer
11981 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
11981 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5815-00-243-8497INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
SC-C-69626
5950-00-283-4433INTERCHANGEABLE
REACTOR
1981584-1
6660-00-663-8121INTERCHANGEABLE
METEOROLOGICAL STATION,MANUAL
1198-1
5950-00-706-9437INTERCHANGEABLE
COIL,RADIO FREQUENCY
5930-00-864-6797INTERCHANGEABLE
SWITCH,ROTARY
2134838
5930-00-967-4499INTERCHANGEABLE
INSERT,PUSH BUTTON
5998-01-103-5087INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4720-01-211-0892INTERCHANGEABLE
HOSE
11981
6145-01-356-0144INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
11981
7025-01-475-8065INTERCHANGEABLE
KEYBOARD,DATA ENTRY
11981
6550-01-574-6867INTERCHANGEABLE
CHLORINE TEST TABLETS
5305-01-586-8528INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
11981

Frequently Asked Questions

What is NSN 5120-01-430-7985?

NSN 5120-01-430-7985 is a Extension,socket Wrench, manufactured by Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc., classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-430-7985?

NSN 5120-01-430-7985 has 2 cross-referenced part numbers: 11981 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 11981 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-430-7985?

There are 12 known substitutes for 5120-01-430-7985: 5815-00-243-8497, 5950-00-283-4433, 6660-00-663-8121 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11981?

Key specifications for 11981: Surface Treatment: CHROMIUM OVERALL; Features Provided: MANUAL TOOL; Material: STEEL OVERALL; Overall Length: 12.000 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-430-7985 still in active supply?

NSN 5120-01-430-7985 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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