PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AT405-D4-3Bit,screwdriver

Air Tuf Products Div of Air Industries Corp · NSN 5120-01-074-8103 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-074-8103 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-074-8103. Primary manufacturer part number: AT405-D4-3.
Features
  • Bit,screwdriver — FSC 5120
  • Shank Width Across Wrench Flats: 0.250 INCHES NOMINAL IN
  • Drive Shank Type: HEXAGON
  • Tip Type: TRI-WING CROSS
  • Tip Size Designation: 3
  • 7 verified cross-references
  • Primary manufacturer: Air Tuf Products Div of Air Industries Corp
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Bit,screwdriver, cataloged under National Stock Number 5120-01-074-8103, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Air Tuf Products Div of Air Industries Corp. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-074-8103
Primary Part NumberAT405-D4-3
Item NameBit,screwdriver
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerAir Tuf Products Div of Air Industries Corp
StatusACTIVE
Shank Width Across Wrench Flats0.250 INCHES NOMINAL IN
Drive Shank TypeHEXAGON
Tip TypeTRI-WING CROSS
Tip Size Designation3
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-104-5231 INTERCHANGEABLE
Pin,hinge
5360-00-317-9393 INTERCHANGEABLE
Spring,helical,extension
1680-00-608-311440503 INTERCHANGEABLE
Spacer,load Spring
Honeywell International Inc. Div Aerospace - Torrance
2915-00-874-75764050 INTERCHANGEABLE
Valve,fuel Shutoff
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
2910-00-891-06016416712 INTERCHANGEABLE
Pump,fuel,cam Actuated
General Motors Llc Dba General Motors Llc
3455-01-045-794116220 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
6515-01-108-2861 INTERCHANGEABLE
Pin,bone Nail Guide
5306-01-113-574135-4-12 INTERCHANGEABLE
Bolt,machine
Acco-Babcock Inc Hoist and Crane Div
5340-01-286-676740503 INTERCHANGEABLE
Rubber Mount
Andrew Llc
4730-01-320-17594050-3P INTERCHANGEABLE
Coupling Half,quick Disconnect
Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division
Cross-Reference Index
Part NumberManufacturer
BTW3 Stokvis Tapes France (anciennement Adera) (FRA)
AT405-D4-3 PRIMARY Air Tuf Products Div of Air Industries Corp (USA)
BTW3 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
BTW3A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
TWD-3 Apex Tool Group, Llc (USA)
40503 Magna Div Vermont American Corp (USA)
35412 PRIMARY Magna Div Vermont American Corp (USA)
Related Parts
5315-00-104-5231INTERCHANGEABLE
PIN,HINGE
5360-00-317-9393INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
1680-00-608-3114INTERCHANGEABLE
SPACER,LOAD SPRING
40503
2915-00-874-7576INTERCHANGEABLE
VALVE,FUEL SHUTOFF
4050
2910-00-891-0601INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
6416712
3455-01-045-7941INTERCHANGEABLE
CUTTER,MILLING,END
16220
6515-01-108-2861INTERCHANGEABLE
PIN,BONE NAIL GUIDE
5306-01-113-5741INTERCHANGEABLE
BOLT,MACHINE
35-4-12
5340-01-286-6767INTERCHANGEABLE
RUBBER MOUNT
40503
4730-01-320-1759INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4050-3P
4820-01-328-1329INTERCHANGEABLE
VALVE,SAFETY RELIEF
WJL-10-1900
5945-01-421-5534INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
40503

Frequently Asked Questions

What is NSN 5120-01-074-8103?

NSN 5120-01-074-8103 is a Bit,screwdriver, manufactured by Air Tuf Products Div of Air Industries Corp, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-074-8103?

NSN 5120-01-074-8103 has 7 cross-referenced part numbers: BTW3 (Stokvis Tapes France (anciennement Adera)), AT405-D4-3 (Air Tuf Products Div of Air Industries Corp), BTW3 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), BTW3A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), TWD-3 (Apex Tool Group, Llc) and 2 more.

What NSN replaces 5120-01-074-8103?

There are 12 known substitutes for 5120-01-074-8103: 5315-00-104-5231, 5360-00-317-9393, 1680-00-608-3114 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AT405-D4-3?

Key specifications for AT405-D4-3: Overall Length: 1.000 INCHES NOMINAL IN; Shank Width Across Wrench Flats: 0.250 INCHES NOMINAL IN; Drive Shank Type: HEXAGON; Tip Type: TRI-WING CROSS. 5 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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