PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-172Screwdriver,flat Tip

Stanley Tools Div of Stanley Works · NSN 5120-01-551-9748 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-551-9748 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-551-9748. Primary manufacturer part number: 66-172.
Features
  • Screwdriver,flat Tip — FSC 5120
  • Shank Shape: SQUARE
  • Surface Treatment: CHROMIUM BLADE
  • Width: 0.500 INCHES NOMINAL TIP IN
  • Color: YELLOW AND BLACK HANDLE
  • Material: STEEL BLADE
  • Features Provided: FLARED TIP SIDE AND STRAIGHT FLUTED HANDLE
  • Material: PLASTIC HANDLE
Applications
  • Applications requiring Steel Blade construction
General Description

The Screwdriver,flat Tip, cataloged under National Stock Number 5120-01-551-9748, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Stanley Tools Div of Stanley Works. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-551-9748
Primary Part Number66-172
Item NameScrewdriver,flat Tip
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerStanley Tools Div of Stanley Works
StatusCANCELLED
Shank ShapeSQUARE
Surface TreatmentCHROMIUM BLADE
Width0.500 INCHES NOMINAL TIP IN
ColorYELLOW AND BLACK HANDLE
MaterialSTEEL BLADE
Features ProvidedFLARED TIP SIDE AND STRAIGHT FLUTED HANDLE
MaterialPLASTIC HANDLE
Length12.000 INCHES NOMINAL BLADE IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
4210-00-128-135666172 INTERCHANGEABLE
Tip,nozzle,fire Hose
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
4310-01-006-2506 INTERCHANGEABLE
Mounting Assembly Trap
Cross-Reference Index
Part NumberManufacturer
66-172 The Stanley Works Dba Stanley Proto (USA)
6C250 W.w. Grainger, Inc. Div Government Sales Division (USA)
66-172 PRIMARY Stanley Tools Div of Stanley Works (USA)
Related Parts
4210-00-128-1356INTERCHANGEABLE
TIP,NOZZLE,FIRE HOSE
66172
4310-01-006-2506INTERCHANGEABLE
MOUNTING ASSEMBLY TRAP

Frequently Asked Questions

What is NSN 5120-01-551-9748?

NSN 5120-01-551-9748 is a Screwdriver,flat Tip, manufactured by Stanley Tools Div of Stanley Works, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-551-9748?

NSN 5120-01-551-9748 has 3 cross-referenced part numbers: 66-172 (The Stanley Works Dba Stanley Proto), 6C250 (W.w. Grainger, Inc. Div Government Sales Division), 66-172 (Stanley Tools Div of Stanley Works).

What NSN replaces 5120-01-551-9748?

There are 2 known substitutes for 5120-01-551-9748: 4210-00-128-1356, 4310-01-006-2506. Verify interchangeability with system specifications before substitution.

What are the specifications of 66-172?

Key specifications for 66-172: Overall Length: 17.250 INCHES NOMINAL IN; Shank Shape: SQUARE; Surface Treatment: CHROMIUM BLADE; Width: 0.500 INCHES NOMINAL TIP IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-551-9748 still in active supply?

NSN 5120-01-551-9748 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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