PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39-110Socket,socket Wrench

Armstrong Bros Tool Co · NSN 5120-01-580-7888 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-580-7888 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-580-7888. Primary manufacturer part number: 39-110.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching End Outside Diameter: 15.9 MILLIMETERS NOMINAL MM
  • Drive End Outside Diameter: 21.8 MILLIMETERS NOMINAL MM
  • Material: STEEL OVERALL
  • Features Provided: MANUAL TOOL
  • Wrenching End Opening Depth: 10.2 MILLIMETERS NOMINAL MM
  • Surface Treatment: CHROMIUM OVERALL
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-580-7888, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Armstrong Bros Tool Co. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-580-7888
Primary Part Number39-110
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerArmstrong Bros Tool Co
StatusACTIVE
Wrenching End Outside Diameter15.9 MILLIMETERS NOMINAL MM
Drive End Outside Diameter21.8 MILLIMETERS NOMINAL MM
MaterialSTEEL OVERALL
Features ProvidedMANUAL TOOL
Wrenching End Opening Depth10.2 MILLIMETERS NOMINAL MM
Surface TreatmentCHROMIUM OVERALL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size10.0 MILLIMETERS NOMINAL SINGLE END MM
Style DesignatorINTERNAL-INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5815-00-021-4603 INTERCHANGEABLE
Bar,locking,teletypewriter
6625-00-103-2679391A INTERCHANGEABLE
Test Set,semiconductor Device
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
5985-01-005-50822995272 INTERCHANGEABLE
Waveguide Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6515-01-243-0540391.10 INTERCHANGEABLE
Passer,wire,bone Fixation
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
4320-01-278-563439110 INTERCHANGEABLE
Piston,pump
Leroi International Inc Dba Compair Leroi
6130-01-312-842939-110 INTERCHANGEABLE
Charger,battery
Applied Power Inc Power Packer
Cross-Reference Index
Part NumberManufacturer
39-110 Armstrong Bros Tool Co (USA)
39-110 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
39-110 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5815-00-021-4603INTERCHANGEABLE
BAR,LOCKING,TELETYPEWRITER
6625-00-103-2679INTERCHANGEABLE
TEST SET,SEMICONDUCTOR DEVICE
391A
5985-01-005-5082INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
2995272
6515-01-243-0540INTERCHANGEABLE
PASSER,WIRE,BONE FIXATION
391.10
4320-01-278-5634INTERCHANGEABLE
PISTON,PUMP
39110
6130-01-312-8429INTERCHANGEABLE
CHARGER,BATTERY
39-110

Frequently Asked Questions

What is NSN 5120-01-580-7888?

NSN 5120-01-580-7888 is a Socket,socket Wrench, manufactured by Armstrong Bros Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-580-7888?

NSN 5120-01-580-7888 has 3 cross-referenced part numbers: 39-110 (Armstrong Bros Tool Co), 39-110 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 39-110 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-580-7888?

There are 6 known substitutes for 5120-01-580-7888: 5815-00-021-4603, 6625-00-103-2679, 5985-01-005-5082 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 39-110?

Key specifications for 39-110: Wrenching End Outside Diameter: 15.9 MILLIMETERS NOMINAL MM; Drive End Outside Diameter: 21.8 MILLIMETERS NOMINAL MM; Overall Length: 37.0 MILLIMETERS NOMINAL MM; Material: STEEL OVERALL. 12 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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