PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99S12Blade,nutdriver

Apex Tool Group, Llc · NSN 5120-00-056-3931 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-056-3931 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-056-3931. Primary manufacturer part number: 99S12.
Features
  • Blade,nutdriver — FSC 5120
  • General Characteristics Item Description: STEEL; 3/8 IN. HEX SIZE; 1-3/8 IN. LG IN
  • 5 verified cross-references
  • Primary manufacturer: Apex Tool Group, Llc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Blade,nutdriver, cataloged under National Stock Number 5120-00-056-3931, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-056-3931
Primary Part Number99S12
Item NameBlade,nutdriver
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc
StatusCANCELLED
General Characteristics Item DescriptionSTEEL; 3/8 IN. HEX SIZE; 1-3/8 IN. LG IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4720-00-230-6528 INTERCHANGEABLE
Hose,nonmetallic
5845-00-758-088248241 INTERCHANGEABLE
Filter Amplifier
L3harris Technologies, Inc. Div Space and Airborne Systems
5950-01-369-082220964 INTERCHANGEABLE
Transformer,power
Robert M. Hadley Company, Inc.
5340-01-524-410248241 INTERCHANGEABLE
Hinge,butt
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
99S12 Apex Tool Group, Llc (USA)
48241 Apex Tool Group, Llc (USA)
99S12 Apex Tool Group (USA)
48241 Apex Tool Group (USA)
99-S12 COOPER/XCELITE Kipper Tool Company Dba Kipper Management Inc (USA)
Related Parts
4720-00-230-6528INTERCHANGEABLE
HOSE,NONMETALLIC
5845-00-758-0882INTERCHANGEABLE
FILTER AMPLIFIER
48241
5950-01-369-0822INTERCHANGEABLE
TRANSFORMER,POWER
20964
5340-01-524-4102INTERCHANGEABLE
HINGE,BUTT
48241

Frequently Asked Questions

What is NSN 5120-00-056-3931?

NSN 5120-00-056-3931 is a Blade,nutdriver, manufactured by Apex Tool Group, Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-056-3931?

NSN 5120-00-056-3931 has 5 cross-referenced part numbers: 99S12 (Apex Tool Group, Llc), 48241 (Apex Tool Group, Llc), 99S12 (Apex Tool Group), 48241 (Apex Tool Group), 99-S12 COOPER/XCELITE (Kipper Tool Company Dba Kipper Management Inc).

What NSN replaces 5120-00-056-3931?

There are 4 known substitutes for 5120-00-056-3931: 4720-00-230-6528, 5845-00-758-0882, 5950-01-369-0822 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 99S12?

Key specifications for 99S12: End Item Identification: COOPER/XCELITE SERIES 99 HANDLES; General Characteristics Item Description: STEEL; 3/8 IN. HEX SIZE; 1-3/8 IN. LG IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-056-3931 still in active supply?

NSN 5120-00-056-3931 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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