PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5854Adapter,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-9754 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9754 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9754. Primary manufacturer part number: 5854.
Features
  • Adapter,socket Wrench — FSC 5120
  • Outside Diameter: 2.000 INCHES MAXIMUM IN
  • Drive Surface Size: 0.750 INCHES NOMINAL SECOND END IN
  • Style Designator: EXTERNAL-INTERNAL
  • Drive Surface Size: 1.000 INCHES NOMINAL FIRST END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Features Provided: MANUAL TOOL
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Adapter,socket Wrench, cataloged under National Stock Number 5120-01-399-9754, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 9 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-399-9754
Primary Part Number5854
Item NameAdapter,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Outside Diameter2.000 INCHES MAXIMUM IN
Drive Surface Size0.750 INCHES NOMINAL SECOND END IN
Style DesignatorEXTERNAL-INTERNAL
Drive Surface Size1.000 INCHES NOMINAL FIRST END IN
Surface TreatmentCHROMIUM OVERALL
Features ProvidedMANUAL TOOL
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SECOND END EXTERNAL
Drive End ShapeSQUARE FIRST END INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-062-162214951 INTERCHANGEABLE
Reactor
Elbitamerica, Inc.
5330-00-093-661527151 INTERCHANGEABLE
Packing,preformed
Paxton Products Inc
5950-00-137-27122678510 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5960-00-181-0211 INTERCHANGEABLE
Electron Tube
2805-00-364-49115854 INTERCHANGEABLE
Insert,e,haust Valv
Mitsubishi Caterpillar Forklift America, Inc
5950-00-433-706910178107-049 INTERCHANGEABLE
Coil,radio Frequency
Us Army Aviation and Missile Command
3030-00-528-3763 INTERCHANGEABLE
Belt,v
2520-00-734-8166 INTERCHANGEABLE
Shifter Fork,vehicular
1650-00-736-10235854-5 INTERCHANGEABLE
Cylinder,actuating,linear
Goodrich Aerospace Canada Ltd
5950-00-949-7400P38500208 INTERCHANGEABLE
Transformer,audio Frequency
Entron Industries Limited Partnership Dba Entron Industries Property Div
Cross-Reference Index
Part NumberManufacturer
5854 PRIMARY The Stanley Works Dba Stanley Proto (USA)
1AR27 W.w. Grainger, Inc. Div Government Sales Division (USA)
14-951 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
0738 8408 Blackwood J. Blackwood & Son Pty Ltd (AUS)
14-951 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5950-00-062-1622INTERCHANGEABLE
REACTOR
14951
5330-00-093-6615INTERCHANGEABLE
PACKING,PREFORMED
27151
5950-00-137-2712INTERCHANGEABLE
TRANSFORMER,POWER
2678510
5960-00-181-0211INTERCHANGEABLE
ELECTRON TUBE
2805-00-364-4911INTERCHANGEABLE
INSERT,E,HAUST VALV
5854
5950-00-433-7069INTERCHANGEABLE
COIL,RADIO FREQUENCY
10178107-049
3030-00-528-3763INTERCHANGEABLE
BELT,V
2520-00-734-8166INTERCHANGEABLE
SHIFTER FORK,VEHICULAR
1650-00-736-1023INTERCHANGEABLE
CYLINDER,ACTUATING,LINEAR
5854-5
5950-00-949-7400INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
P38500208
5910-01-029-8907INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
5331-01-222-8976INTERCHANGEABLE
O-RING
1495-1

Frequently Asked Questions

What is NSN 5120-01-399-9754?

NSN 5120-01-399-9754 is a Adapter,socket Wrench, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-399-9754?

NSN 5120-01-399-9754 has 5 cross-referenced part numbers: 5854 (The Stanley Works Dba Stanley Proto), 1AR27 (W.w. Grainger, Inc. Div Government Sales Division), 14-951 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 0738 8408 (Blackwood J. Blackwood & Son Pty Ltd), 14-951 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-399-9754?

There are 12 known substitutes for 5120-01-399-9754: 5950-00-062-1622, 5330-00-093-6615, 5950-00-137-2712 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5854?

Key specifications for 5854: Outside Diameter: 2.000 INCHES MAXIMUM IN; Drive Surface Size: 0.750 INCHES NOMINAL SECOND END IN; Style Designator: EXTERNAL-INTERNAL; Overall Length: 2.875 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-9754 still in active supply?

NSN 5120-01-399-9754 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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