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Variable Attenuator NSN 5985-01-274-3991

Item Description

A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also resistor, vaiable (as modified).

NSN 5985-01-274-3991 NSN: 5985-01-274-3991

Features and Characteristics

Application Design
Printed circuit board
Body Material
Brass
Body Style
Irregular
Overall Length
5.500 inches
Overall Height
1.000 inches
Overall Width
1.250 inches
Voltage Standing Wave Ratio
1.00 and 1.02 and 1.30 and 1.40
Insertion Loss At Minimum Attenuation In Maximum Decibels
4.5
Overall Attenuation Range In Decibels
+0.0/+15.5
Attenuation Variation Method
Stepped
Mounting Facility Type And Quantity
38 terminal
Frequency Range
Between 55.000 megahertz and 65.000 megahertz
Segment Attenuation Accuracy In Decibels
-0.25/+0.25
Adjustment Device Type And Quantity
1 electronic, voltage controlled
Impedance Rating In Ohms
50.0 input and 50.0 output
Special Features
External surfaces to be tin plated; all surfaces except bottom and pins to be finished with semi-gloss enamel; bottom and pins to be gold plated
Precious Material And Location
External surfaces gold
Precious Material
Gold
Terminal Type And Quantity
38 pin
Fsc Application Data
Antennas, waveguides, and related equipment
FSC
5985 Related Equipment Waveguides Antennas
NIIN
012743991
NSN
5985012743991

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
P-DATT-4003
Cage Code:
0N8W8
Status:
A
MSDS:
Part Number:
5616444-1
Cage Code:
53711
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8529109000
  • NAICS: 334220
  • SITC: 76493
  • Description: Antenna & antenna reflectors of all kinds; parts suitable for use soley or principally w/ apparatus of heading 8525 to 8528, nesoi
  • End Use (Code 21400):
    Telecommunications equipment

Q & A

Frequently asked questions for NSN 5985-01-274-3991
What are the manufacturers of nsn 5985012743991?
Does this nsn 5985012743991 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5985012743991
A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. the item must have an overall attenuation rating. includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. see also resistor, vaiable (as modified).
Does nsn 5985012743991 contain any precious metals?
Item contains gold.
Does nsn 5985012743991 contain any hazardous materials?
No information in HMIRS. Hazardous material unknown.
What is the ESD classification of nsn 5985012743991?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
00838
FIIG:
A223A0
App. Key:
A
Cond. Code:
1
Status:
A

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