PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

185-1XBit,screwdriver

Apex Tool Group, Llc · NSN 5120-00-640-6725 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-640-6725 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-640-6725. Primary manufacturer part number: 185-1X.
Features
  • Bit,screwdriver — FSC 5120
  • Shank Width Across Wrench Flats: 0.250 INCHES NOMINAL IN
  • Tip Type: MALE HEXAGONAL
  • Width Across Flats: 0.094 INCHES NOMINAL IN
  • Drive Shank Type: HEXAGON
  • 14 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 5120-00-640-6725, 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 14 commercial cross-references from 11 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
NSN5120-00-640-6725
Primary Part Number185-1X
Item NameBit,screwdriver
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc
StatusCANCELLED
Shank Width Across Wrench Flats0.250 INCHES NOMINAL IN
Tip TypeMALE HEXAGONAL
Width Across Flats0.094 INCHES NOMINAL IN
Drive Shank TypeHEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-036-1730005-500-0001 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
3110-00-117-05711851 INTERCHANGEABLE
Bearing,ball,annular
Pierce Co Inc the Sub of Avis Industrial Corp
5325-00-148-55091851 INTERCHANGEABLE
Stud,lock Pin Fastener
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5960-00-188-3921 INTERCHANGEABLE
Electron Tube
3455-00-241-303817531 INTERCHANGEABLE
Cutter,milling,angle
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
1630-00-394-1598G185-1 INTERCHANGEABLE
Ring,wheel Flinger
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
6150-00-424-60851851 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Mission Systems Davenport Inc.
2520-00-495-709818-5-1 INTERCHANGEABLE
Gear
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
3020-00-540-44491851 INTERCHANGEABLE
Gear,spur
L3harris Technologies, Inc. Div Space and Airborne Systems
4820-00-800-6156 INTERCHANGEABLE
Valve,safety Relief
Cross-Reference Index
Part NumberManufacturer
185-1 Nasco Industries Inc Dba Industrial Products Div (USA)
GGG-B-001222 TY2CL5 General Services Administration Federal Supply Service (USA)
A-A-3153 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
185-1X PRIMARY Apex Tool Group, Llc (USA)
1618640 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
819123 Dresser Industries Inc Dresser Magcobar Div (USA)
100-H6 Amco Products, Inc. (USA)
28719-06 Utica Tool Co Inc (USA)
HW-4 Utica Tool Co Inc (USA)
HW-4 Apex Tool Group, Llc (USA)
185-1 Apex Tool Group, Llc (USA)
GGG-B-001222 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
000-S1 Mountz D G Associates Inc (USA)
5120PL0878182 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
4820-00-036-1730INTERCHANGEABLE
DISK,VALVE
005-500-0001
3110-00-117-0571INTERCHANGEABLE
BEARING,BALL,ANNULAR
1851
5325-00-148-5509INTERCHANGEABLE
STUD,LOCK PIN FASTENER
1851
5960-00-188-3921INTERCHANGEABLE
ELECTRON TUBE
3455-00-241-3038INTERCHANGEABLE
CUTTER,MILLING,ANGLE
17531
1630-00-394-1598INTERCHANGEABLE
RING,WHEEL FLINGER
G185-1
6150-00-424-6085INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
1851
2520-00-495-7098INTERCHANGEABLE
GEAR
18-5-1
3020-00-540-4449INTERCHANGEABLE
GEAR,SPUR
1851
4820-00-800-6156INTERCHANGEABLE
VALVE,SAFETY RELIEF
4730-00-814-4581INTERCHANGEABLE
FITTING,LUBRICATION
1851
5999-00-986-7372INTERCHANGEABLE
DELAY LINE
712810-16REVA

Frequently Asked Questions

What is NSN 5120-00-640-6725?

NSN 5120-00-640-6725 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 5120-00-640-6725?

NSN 5120-00-640-6725 has 14 cross-referenced part numbers: 185-1 (Nasco Industries Inc Dba Industrial Products Div), GGG-B-001222 TY2CL5 (General Services Administration Federal Supply Service), A-A-3153 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 185-1X (Apex Tool Group, Llc), 1618640 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 9 more.

What NSN replaces 5120-00-640-6725?

There are 12 known substitutes for 5120-00-640-6725: 4820-00-036-1730, 3110-00-117-0571, 5325-00-148-5509 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 185-1X?

Key specifications for 185-1X: Shank Width Across Wrench Flats: 0.250 INCHES NOMINAL IN; Overall Length: 1.000 INCHES MAXIMUM IN; Tip Type: MALE HEXAGONAL; Width Across Flats: 0.094 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-640-6725 still in active supply?

NSN 5120-00-640-6725 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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