C3
Grainger Choice Product
LUMAPRO

Miniature Incandescent Bulb, T3-1/4, Miniature Bayonet (BA9s), Lumens 43, Watts 4.0

  • Item # 21U556
  • My Part #
  • Mfr. Model # 21U556
  • Catalog Page # 504
  • UNSPSC # 39101612
Miniature Incandescent Bulb,  T3-1/4,  Miniature Bayonet (BA9s),  Lumens 43,  Watts 4.0 close
To zoom in, use the keyboard to focus on the arrow icon within the product image. Once it receives focus, use the arrow keys on the keyboard to move and position the product image. The zoom feature provides no benefit to users who are blind.
close

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.

CAD Downloads

Web Price

Please sign in to your account to see your pricing, which may be different from the price displayed.


Primary Category:
~Lighting~Lamps~Miniature Lamps and Bulbs


$4.56 / each
Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Please sign in or register to access Quote

Want to Get Free Shipping?

  • Shipping Weight 0.001 lbs.
Country of Origin China Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More
  • This item is manufactured or supplied by a small, minority, woman, veteran or disadvantaged business.

Product Details

This miniature incandescent bulb features a filament that glows when an electric current passes through it. It is designed for use in aircraft applications.

View More

Technical Specs

  • Item Miniature Incandescent Bulb
  • Overall Bulb Shape T
  • Bulb Shape T3-1/4
  • Overall Bulb Base Type Miniature Bayonet
  • Bulb Base Type Miniature Bayonet (BA9s)
  • Light Technology Incandescent
  • Lumens 43
  • Wattage Equivalency 4.2W INC
  • Watts 4
  • Voltage 6
  • Trade Number 316
  • Bulb Primary Application Aircraft
  • Bulb Type Miniature
  • Color Temperature 2700, 2999K
  • Light Appearance 2700 to 2999K, Soft White
  • Indoor/Outdoor Usage Indoor Only
  • Shatter-Resistant No
  • Rough Service No
  • Light Color Clear
  • Bulb Finish Clear
  • Bulb Housing Glass
  • Bulb Dia. 13/32"
  • Overall Length 1-3/16"
  • Rated Life 500 hr.
  • Amps 700mA
  • Bulb Power Source Direct Wired
  • Bulb Start Type Electronic
  • For Enclosed Fixtures No
  • Standards Meets 2012 Lighting Legislation Energy Standards
  • Bulb Manufacturers Warranty Length 1 yr.
How can we improve our Technical Specifications?

Compliance and Restrictions


Alternate Products

Alternate Products may not be identical in style or function to original selection. Please compare below for more information.