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Cross Reference

These part numbers have the same form, fit, and function as id-2091u
Item Number Cage
1951-1-1007 28815
123860 10138
ID-2091/U 80058
1951-1-4896-1 15942

Technical Definition

Headi Distance Indicator, Bearing, also referenced with federal logistics item name code 19640 - An indicator that displays data for the determination of the angle between a target and a fixed reference point, the spacing between two or more points in scalar values, and the angle between a point such as magnetic or true north and the longitudinal axis of the aircraft, ship, or ground vehicle in which it is installed.

Q & A

Part number ID2091U
What are the historical prices for part number ID-2091U?
No pre-dated pricing for this NSN could be found.
Does this part number ID-2091U have a shelf life?
No. There is no shelf life applicable for this part.
Does this part number ID-2091U require Demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Is part number ID-2091U ITAR controlled?
Yes. This item is subject to the international traffic in arms regulations (ITAR).
What is the NSN for part number ID-2091U?
Who are the manufacturers of ID-2091U and NSN 5841-01-315-2425?
  • Northrop Grumman Space & Mission (CAGE 28815)
  • Astronautics Corporation Of America (CAGE 10138)
  • Joint Electronics Type Designation (CAGE 80058)
  • Usacecom Intelligence Electronic (CAGE 15942)


Description: Bearing-distance-headi Indicator
Part Number ID-2091U ID 2091U


ABMZ Diameter
3.125 inches
ABRY Length
8.420 inches
ABTB Mounting Hole Diameter
From 0.168" and 0.172"
ACDC Current Type
ACYN Ac Voltage Rating
26.0 volts
ACYR Dc Voltage Rating
28.0 volts
ACZB Frequency Rating
400.0 hertz
AGAV For Use With/on
AMNL Presentation Type
ASKX Electrical Connection Quantity
CBBL Features Provided
Hermetically sealed case
FAAZ Phase
FEAT Special Features
Undervoltage protection; center to center distance between mounting facilities parallel to length: 2.474 in.; center to center distance between mounting facilities parallel to width: 2.474 in.; mounting arrangement style: 3, four hole/stud retangular/square; electrical connection identifying number: jt1h-14-18p; accuracy rating: 360.0 marker degree
ZZZY Reference Number Differentiating Characteristics
As differentiated by source control drawing number 1951-1-4896-1
National Stock Number (NSN): 5841-01-315-2425