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Differential Receiver Synchro

NSN: 5990-01-121-1175 | Model: MIL-S-20708/67
ITAR Registered seal

A synchro, the rotor of which is free to turn, which will assume a position in accordance with the sum or difference of the electrical angular information received from two transmitter synchros. Does not include variable resistors, goniometers, variable transformers, or items with dials.

NSN Properties and Flags
NATO Stock Number
5990-01-121-1175
DEMIL
Yes - ITAR Controlled (Code D)
Body Material
Steel, corrosion resisting
Body Style
Standard round d
Shoulder Diameter
2.7000 inches
Pilot Diameter
0.5000 inches
Second Shoulder Diameter
2.7500 inches
Second Shoulder Length
0.3750 inches
Overall Length
5.3600 inches
Flange Diameter
3.1000 inches
Flange Thickness
0.2500 inches
Body Diameter
2.7000 inches
Shaft Diameter
0.2405 inches single shaft
Shaft Length
0.7000 inches single shaft
Schematic Diagram Designator
Err-090
Fragility Factor
Moderately rugged
Body Size
31
Stator Input Voltage Rating In Volts
90.0
Stator Input Current Rating
748.0 milliamperes
Stator Input Electrical Power Rating
7.8 watts
Frequency In Hertz
60.0
Phase Shift Angle In Deg
6.500 output to input
Electrical Error Angular Range In Minutes
-10.0/+10.0
Spline Tooth Quantity
22 single shaft
Receiver Error Angular Range In Minutes
-48.0/+48.0
Shaft Radial Play Test Point
0.125 inches
Shaft Maximum Radial Play
0.0008 inches
Shaft End Play
Between 0.0010 inches and 0.0050 inches
Pilot Length
0.0300 inches
Shoulder Length
0.6450 inches
Aft Of First Flange Diameter
2.3220 inches
Mounting Surface To Terminal End Distance
4.6600 inches
Spline Tooth Diametral Pitch
96 single shaft
Shaft Maximum Runout
0.0008 inches
Shaft Thread Series Designator
Unf single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
2a
Terminal Location
Rear
Shaft Thread Length
0.3200 inches single shaft
Shaft Type
Spline w/threads single shaft
Transformation Ratio
1.154 rotor to stator
Shaft Thread Size
0.250 inches single shaft
Shaft Radial Play Determining Weight
16.0 ounces
Shaft End Play Determining Weight
16.0 ounces
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
6 screw
Specification Data
81349-mil-s-20708/67 government specification

Pricing and Availability

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NSN 5990-01-121-1175 Datasheet

Supply Class (FSC):
Synchros And Resolvers
Cross Reference:
  • MIL-S-20708/67
  • MIL-S-20708
  • 31TDR6B
Cage Codes:
  • Military Specifications (CAGE 81349)
Schedule B & Trade:
  • Schedule B: 9014900000 (NAICS 334511)

    Parts & accessories for direction finding compasses and other navigational instruments and appliances

  • SITC: 87412

    Parts and accessories of navigational instruments and appliances

  • End Use: 22220

    Marine engines, parts

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

ADPE

- Represents items with no adp components

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    062120 - Generators/motors/parts noi

  • WCC:

    593 - Motors and parts, (machinery and parts),(less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    Y
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    7
  • MGMT_CTL
    9b-----
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $3,224.61 to $5,374.35..
Does NSN 5990-01-121-1175 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy, Spain, and Turkey
What is the NIIN of NSN 5990-01-121-1175?
011211175 or 01-121-1175
Does NSN 5990-01-121-1175 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5990-01-121-1175?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Oct 31, 1981