PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-176-AScrewdriver,flat Tip

The Stanley Works Dba Stanley Proto · NSN 5120-00-278-1283 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-278-1283 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-278-1283. Primary manufacturer part number: 66-176-A.
Features
  • Screwdriver,flat Tip — FSC 5120
  • Specification/standard Data: 05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE
  • Length: 6.000 INCHES NOMINAL BLADE IN
  • Thickness: 0.046 INCHES NOMINAL TIP IN
  • Surface Treatment: CHROMIUM BLADE
  • Material: PLASTIC HANDLE
  • Features Provided: FLARED TIP SIDE AND BOLSTER
Applications
  • Applications requiring Plastic Handle construction
General Description

The Screwdriver,flat Tip, cataloged under National Stock Number 5120-00-278-1283, 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 23 commercial cross-references from 15 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
NSN5120-00-278-1283
Primary Part Number66-176-A
Item NameScrewdriver,flat Tip
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Specification/standard Data05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE
Length6.000 INCHES NOMINAL BLADE IN
Thickness0.046 INCHES NOMINAL TIP IN
Surface TreatmentCHROMIUM BLADE
MaterialPLASTIC HANDLE
Features ProvidedFLARED TIP SIDE AND BOLSTER
Width0.312 INCHES NOMINAL TIP IN
MaterialSTEEL BLADE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-062-0813 INTERCHANGEABLE
Screwdriver,flat Tip
5120-00-067-8453TE8453 INTERCHANGEABLE
Wrench,spanner
Timber Edge Machine Inc.
3110-00-100-0264 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5935-00-257-80432K4 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Cinch Connectivity Solutions Inc.
4130-00-276-0402122346 INTERCHANGEABLE
Filter Element,air Conditioning
Falls Filtration Technologies, Inc.
5120-00-293-1041 INTERCHANGEABLE
Screwdriver,flat Tip
5935-00-488-727569C37527-03 INTERCHANGEABLE
Connector,plug,electrical
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
6680-00-527-66153327629 INTERCHANGEABLE
Tachometer,mechanical,fixed Moun
Hatch & Kirk, Inc.
6625-01-034-6771292189P2 INTERCHANGEABLE
Divider,power,radio Frequency
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5120-01-070-1578 INTERCHANGEABLE
Screwdriver,flat Tip
Cross-Reference Index
Part NumberManufacturer
10424437 Nimikkeistokeskus Ncb Finland (FIN)
66-176-A PRIMARY The Stanley Works Dba Stanley Proto (USA)
0421-90-2000-15 The Entwistle Company Llc (USA)
41S1104 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
41S1104-10 Naval Ordnance Standards (USA)
1007-6 Stanley Works the (USA)
J9804 Stanley-Proto Industrial Works Div of the Stanley Works (USA)
9804 Ingersoll-Rand Co Proto Tool Div Tool Group Headquarters (USA)
B107.600 TY1CL1STB General Services Administration Federal Supply Service (USA)
B107.15 The American Society of Mechanical Engineers (USA)
B107.600 The American Society of Mechanical Engineers (USA)
6C247 W.w. Grainger, Inc. Div Government Sales Division (USA)
GGG-S-121 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
STN66-179 Kaufman Company, Inc. Dba Kaufman Co Inc (USA)
B107.15 TY1CL2DEB General Services Administration Federal Supply Service (USA)
B107.15 TY2 General Services Administration Federal Supply Service (USA)
FAC01039 Inter-Alloys Corp (USA)
66-176 Stanley Tools Div of Stanley Works (USA)
66-176 The Stanley Works Dba Stanley Proto (USA)
B107.15 TY2CL2 General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-062-0813INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
5120-00-067-8453INTERCHANGEABLE
WRENCH,SPANNER
TE8453
3110-00-100-0264INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5935-00-257-8043INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
2K4
4130-00-276-0402INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
122346
5120-00-293-1041INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
5935-00-488-7275INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
69C37527-03
6680-00-527-6615INTERCHANGEABLE
TACHOMETER,MECHANICAL,FIXED MOUN
3327629
6625-01-034-6771INTERCHANGEABLE
DIVIDER,POWER,RADIO FREQUENCY
292189P2
5120-01-070-1578INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
5120-01-084-2743INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
5120-01-197-6713INTERCHANGEABLE
SCREWDRIVER SET,FLAT TIP

Frequently Asked Questions

What is NSN 5120-00-278-1283?

NSN 5120-00-278-1283 is a Screwdriver,flat Tip, 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 5120-00-278-1283?

NSN 5120-00-278-1283 has 23 cross-referenced part numbers: 10424437 (Nimikkeistokeskus Ncb Finland), 66-176-A (The Stanley Works Dba Stanley Proto), 0421-90-2000-15 (The Entwistle Company Llc), 41S1104 (U S Army Tank Automotive Command Amsta-Im-Mm), 41S1104-10 (Naval Ordnance Standards) and 18 more.

What NSN replaces 5120-00-278-1283?

There are 12 known substitutes for 5120-00-278-1283: 5120-00-062-0813, 5120-00-067-8453, 3110-00-100-0264 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66-176-A?

Key specifications for 66-176-A: Specification/standard Data: 05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND B STYLE; Length: 6.000 INCHES NOMINAL BLADE IN; Thickness: 0.046 INCHES NOMINAL TIP IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-278-1283 still in active supply?

NSN 5120-00-278-1283 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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