PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

185-6Bit,screwdriver

Apex Tool Group, Llc · NSN 5120-00-640-6729 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-640-6729 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-640-6729. Primary manufacturer part number: 185-6.
Features
  • Bit,screwdriver — FSC 5120
  • Width Across Flats: 0.250 INCHES NOMINAL IN
  • Shank Width Across Wrench Flats: 0.250 INCHES NOMINAL IN
  • Drive Shank Type: HEXAGON
  • Tip Type: MALE HEXAGONAL
  • 7 verified cross-references
  • Primary manufacturer: Apex Tool Group, Llc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Bit,screwdriver, cataloged under National Stock Number 5120-00-640-6729, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 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
NSN5120-00-640-6729
Primary Part Number185-6
Item NameBit,screwdriver
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc
StatusCANCELLED
Width Across Flats0.250 INCHES NOMINAL IN
Shank Width Across Wrench Flats0.250 INCHES NOMINAL IN
Drive Shank TypeHEXAGON
Tip TypeMALE HEXAGONAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-036-1743005-500-0008 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5342-00-065-60816002-558 INTERCHANGEABLE
Bracket,movable,cable
Raytheon Company Div Rmd Strategic
6625-00-129-90171856 INTERCHANGEABLE
Recorder,signal Data
Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services
5310-00-166-8600 INTERCHANGEABLE
Nut,stud Assembly
3020-00-289-87671856 INTERCHANGEABLE
Gear,spur
L3harris Technologies, Inc. Div Space and Airborne Systems
4720-00-404-7177235B39-51 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cam Fabricated Systems Inc
4330-00-430-2262901856 INTERCHANGEABLE
Filter Element,fluid
Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
5365-00-597-6044 INTERCHANGEABLE
Shim Set
5910-00-799-88870180-0035 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Keysight Technologies Inc
5950-01-166-7171 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
185-6 Apex Tool Group, Llc (USA)
MS16239-6 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
GGG-B-001222 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
CRA8A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
A-A-3153 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
GGG-B-001222 TY2CL5 General Services Administration Federal Supply Service (USA)
5120PL0878214 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
4820-00-036-1743INTERCHANGEABLE
DISK,VALVE
005-500-0008
5342-00-065-6081INTERCHANGEABLE
BRACKET,MOVABLE,CABLE
6002-558
6625-00-129-9017INTERCHANGEABLE
RECORDER,SIGNAL DATA
1856
5310-00-166-8600INTERCHANGEABLE
NUT,STUD ASSEMBLY
3020-00-289-8767INTERCHANGEABLE
GEAR,SPUR
1856
4720-00-404-7177INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
235B39-51
4330-00-430-2262INTERCHANGEABLE
FILTER ELEMENT,FLUID
901856
5365-00-597-6044INTERCHANGEABLE
SHIM SET
5910-00-799-8887INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
0180-0035
5950-01-166-7171INTERCHANGEABLE
COIL,RADIO FREQUENCY
5305-01-169-4522INTERCHANGEABLE
SCREW
530-035
2530-01-217-4987INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK

Frequently Asked Questions

What is NSN 5120-00-640-6729?

NSN 5120-00-640-6729 is a Bit,screwdriver, manufactured by Apex Tool Group, Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-640-6729?

NSN 5120-00-640-6729 has 7 cross-referenced part numbers: 185-6 (Apex Tool Group, Llc), MS16239-6 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), GGG-B-001222 (Federal Specifications Promulgated by General Services Administration Washington DC), CRA8A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), A-A-3153 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 2 more.

What NSN replaces 5120-00-640-6729?

There are 12 known substitutes for 5120-00-640-6729: 4820-00-036-1743, 5342-00-065-6081, 6625-00-129-9017 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 185-6?

Key specifications for 185-6: Width Across Flats: 0.250 INCHES NOMINAL IN; Shank Width Across Wrench Flats: 0.250 INCHES NOMINAL IN; Drive Shank Type: HEXAGON; Tip Type: MALE HEXAGONAL. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-640-6729 still in active supply?

NSN 5120-00-640-6729 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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