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Worldwide distributor of NSN parts and consumables located in the USA.

Receiver-transmitter Synchro

Model / MPN: VTRX37-6A1 | NSN: 5990-00-852-2369
ITAR Registered seal

A synchro having a dual purpose. It may be used in applications requiring either a receiver or transmitter. For synchros having a single purpose, see synchro, receiver and synchro, transmitter.

Product Details
NATO Stock Number
5990-00-852-2369
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Body Material
Steel, stainless
Body Style
Standard round double flange a
Shoulder Diameter
Between 3.3290 inches and 3.3340 inches
Pilot Diameter
1.6250 inches
Second Shoulder Diameter
Between 3.3740 inches and 3.3750 inches
Second Shoulder Length
0.3750 inches
Overall Length
5.9500 inches
Flange Diameter
Between 3.6240 inches and 3.6250 inches
Flange Thickness
0.2500 inches
Body Diameter
Between 3.3850 inches and 3.3900 inches
Shaft Diameter
0.2403 inches single shaft and 0.2405 inches single shaft
Shaft Length
0.7000 inches single shaft
Fragility Factor
Moderately rugged
Distance Between Flanges
1.8120 inches
Maximum Tempurature Rise
35.0 degrees celsius
Body Size
37
Rotor Input Voltage Rating In Volts
115.0
Frequency In Hertz
60.0
Rotor Input Current Rating
830.0 milliamperes
Rotor Input Electrical Power Rating
9.25 watts
Zss Impedance Magnitude In Ohms
Between 7.00 and 10.00
Zss Impedance Angle In Deg
Between 30.00 and 40.00
Phase Shift Angle In Deg
3.000 input to output
Maximum Fundamental Null Voltage In Millivolts Per Volt
35.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt
170.00
Electrical Error Angular Range In Minutes
-10.0/+10.0
Spline Tooth Quantity
22 single shaft
Receiver Error Angular Range In Minutes
-36.0/+36.0
Torque Gradient Per Angular Deg
0.900 inch-ounces
Pilot Length
0.1600 inches
Shoulder Length
0.6550 inches
Mounting Surface To Terminal End Distance
5.0600 inches
Spline Tooth Diametral Pitch
96 single shaft
Shaft Thread Series Designator
Unf single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
2a single shaft
Terminal Location
Rear
Shaft Thread Length
0.3100 inches single shaft
Shaft Type
Spline w/threads single shaft
Transformation Ratio
0.783 rotor to stator
Shaft Thread Size
0.250 inches single shaft
Test Data Document
81349-mil-s-20708 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.).
Terminal Type And Quantity
5 screw
Specification Data
81349-mil-s-20708/74 government specification
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M516TC315 Tr Synchro, Receiver 54 EA 06/27/2016
SPE7M517TP774 Tr Synchro, Receiver 20 EA 07/24/2017
SPE7M518T133U Tr Synchro, Receiver 58 EA 02/26/2018
SPE7M519T1982 Tr Synchro, Receiver 28 EA 10/29/2018
SPE7M520T5537 Tr Synchro, Receiver 13 EA 12/30/2019
SPE7M521T068A Tr Synchro, Receiver 2 EA 03/22/2021
SPE7M521T127P Tr Synchro, Receiver 25 EA 04/12/2021

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VTRX37-6A1 Cross Reference
  • 37TRX6A
  • AY3701A7D1
  • M20708/73A
  • AS20708/74
  • 37TR6
  • AS20708/74
  • 37TRX6B
  • 1878084 PIECE 77
  • 37TXCB
  • 37TRX6
  • 10-1532 PIECE 37
  • C3251-08
  • M20708/74-01A
  • 37TX6B
  • MIL-S-20708/73
  • MIL-S-20708/74
  • M20708/74-01A
  • M20708/74C-001