PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-101Screwdriver,flat Tip

The Stanley Works Dba Stanley Proto · NSN 5120-01-657-0376 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-657-0376 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-657-0376. Primary manufacturer part number: 66-101.
Features
  • Screwdriver,flat Tip — FSC 5120
  • Color: BLACK AND YELLOW HANDLE
  • Width: 0.125 INCHES NOMINAL TIP IN
  • Shank Shape: ROUND
  • Material: STEEL BLADE
  • Length: 2.000 INCHES NOMINAL BLADE IN
  • Features Provided: FLARED TIP SIDE AND STRAIGHT FLUTED HANDLE AND POCKET CLIP
  • Diameter: 0.125 INCHES NOMINAL SHANK IN
Applications
  • Applications requiring Steel Blade construction
General Description

The Screwdriver,flat Tip, cataloged under National Stock Number 5120-01-657-0376, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-657-0376
Primary Part Number66-101
Item NameScrewdriver,flat Tip
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
ColorBLACK AND YELLOW HANDLE
Width0.125 INCHES NOMINAL TIP IN
Shank ShapeROUND
MaterialSTEEL BLADE
Length2.000 INCHES NOMINAL BLADE IN
Features ProvidedFLARED TIP SIDE AND STRAIGHT FLUTED HANDLE AND POCKET CLIP
Diameter0.125 INCHES NOMINAL SHANK IN
Surface TreatmentCHROMIUM BLADE
MaterialPLASTIC HANDLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5950-00-801-63182630C0521 INTERCHANGEABLE
Transformer,power
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
Cross-Reference Index
Part NumberManufacturer
66-101 PRIMARY The Stanley Works Dba Stanley Proto (USA)
Related Parts
5950-00-801-6318INTERCHANGEABLE
TRANSFORMER,POWER
2630C0521

Frequently Asked Questions

What is NSN 5120-01-657-0376?

NSN 5120-01-657-0376 is a Screwdriver,flat Tip, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-657-0376?

NSN 5120-01-657-0376 has 1 cross-referenced part number: 66-101 (The Stanley Works Dba Stanley Proto).

What NSN replaces 5120-01-657-0376?

There is 1 known substitute for 5120-01-657-0376: 5950-00-801-6318. Verify interchangeability with system specifications before substitution.

What are the specifications of 66-101?

Key specifications for 66-101: Color: BLACK AND YELLOW HANDLE; Width: 0.125 INCHES NOMINAL TIP IN; Overall Length: 4.375 INCHES NOMINAL IN; Shank Shape: ROUND. 10 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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