1898A

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1898A
Federal Supply Group
Electrical and Electronic Equipment Components
Federal Supply Classification
5950 Coils and Transformers
National Stock Number
5950-00-977-6055
Item Name Code
00777
Assigment Date
01/01/1962 (64 years ago)

A transformer consisting of one or more primary winding(s) and one or more secondary winding(s). It may be designed for direct connection to an alternating current source for purposes of changing the secondary volts and amperes or designed to eliminate metallic interconnection between circuits in an overall one to one voltage ratio, with or without additional output windings, or items designed to automatically maintain a constant output voltage within specified limits under varying input or load conditions. Also includes items having a provision for mechanically changing the turns ratio or inductive coupling in progressive increments by means of voltage taps, ratio adjuster, or devices oe similar design. For transformers having winding(s) common to both input and output circuits, see transformer (1), power, autotransformer. Excludes:transformer (1), pulse.

3.250 inches nominal body length, not established reliability indicator, slotted screw single component adjustment device drive type, input transformer function, 52.0 kilohertz maximum single component frequency rating

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Reliability Indicator
not established
Transformer Function
input
Frequency Rating
52.0 kilohertz maximum single component
Adjustment Device Drive Type
slotted screw single component
Body Length
3.250 inches nominal
Body Width
1.875 inches nominal
Body Height
1.375 inches nominal
Distance Between Mounting Facility Centers
1.348 inches nominal single mounting facility single center group
Inclosure Type
fully inclosed
Mounting Facility Quantity
2 single group
Mounting Method
threaded stud single group
Winding Function And Quantity
1 primary and 1 secondary single component
Thread Quantity Per Inch
32 single group
Nominal Thread Size
0.138 inches single group
Adjustment Method And Quantity
2 adjustable core single component
Thread Series Designator
unc single group
Terminal Type And Quantity
4 wire lead

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
1898A Radio Frequency Transformer

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5950-00-977-6055?
The FSCG of the NSN 5950-00-977-6055 is 5950
Does the NSN 5950-00-977-6055 have a Schedule B code assigned?
Yes, the Schedule B code is 8548900100
Does NSN 5950-00-977-6055 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5950-00-977-6055 contain precious materials?
Precious metal content is unknown
Does NSN 5950-00-977-6055 contain hazardous materials?
Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.
When the NSN 5950-00-977-6055 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Mon, Jan 1, 1962

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