Air Speed Indicator

Features

Specifications

• Width:
  Between 2.360 inches and 2.390 inches
• Diameter:
  2.265 inches
• Length:
  4.400 inches
• Scale Division Quantity:
  37 single indicator single scale
• Current Type:
  Dc
• Contact Quantity:
  3
• End Application:
  Th-1h modification
• Usage Design:
  Air speed
• Presentation Type:
  Dial
• Individual Marking:
  Lines indicating 5 and 10 knot increments; numbers indicating 20 knot increments
• Electrical Connection Quantity:
  1
• Electrical Connection Identifying Number:
  Ms27471y-9-n-98p or equivalent
• Mechanical Connection Quantity:
  2
• Mechanical Connection Size:
  Static port .5625-18 unjf-3b; pitot port .4375-20 unjf-3b
• Mechanical Connection Type:
  Tube w/fittings
• Pointer Purpose:
  Indicate forward velocity
• Pointer Type:
  Indicating single pointer
• Mounting Facility Type And Quantity:
  1 panel
• Test Data Document:
  Cbht-299-947-526 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
• Federal Supply Class (fsc):
  Flight instruments
• National Stock Number (nsn):
  6610-01-552-7651
• Special Features:
  Range = 0-200 knots; barber pole located at 105 knots; red line located at 140 knots; yellow arc located from 0-30 knots; green arc located from 30-140 knots, indicator is integrally lighted with positive 5 volts dc nvg green and tested in accordance with bht 299-947-526, bonding method per mil-c-5541, class 3, weight is 1.0 pound , bell part number for this item is 412-375-077-103