Part Number
DEMIL
Shelf Life
UOM
NIIN
Part Information
Item consists of a headband type, dual earphone headset, a m-138/g microphone, toggle switch with neck and chest straps, and a cable assembly; used with the an/vrc-12 radio set
NSN
National Stock Number:
TXT
Description:
Headset-microphone
MRC:
The number of complete cyclic changes,per unit of time,for which an item is rated.ACZB
Frequency Rating:
Between 0.3 kilohertz and 3.5 kilohertz
MRC:
An indication of whether or not a device used to open or close an electrical circuit is included with the item.AEZD
Switch:
Included
MRC:
The opposition to the flow of direct current offered by an item,expressed in ohms.AFYV
Dc Resistance Rating In Ohms:
24.0
MRC:
The total opposition /resistive and reactive/ to the flow of alternating current.AFYY
Impedance Rating:
150.0 ohms
MRC:
Indicates the type of earphone element as determined by its construction and method of operation.AHEQ
Earphone Element Type:
Dynamic
MRC:
The number of earphones provided on the item.AHES
Earphone Quantity:
2
MRC:
The name of the government agency or commercial organization controlling the item.AMSA
Controlling Agency:
Us army communications and electronics materiel readiness command
MRC:
An identifying number assigned by the government agency or commercial organization controlling the item.AMSB
Identifying Number:
Se-c-889810 part no.
MRC:
The total opposition (resistive and reactive) which the earphone offers to the flow of alternating current.BKSQ
Earphone Impedance Rating:
1.0 kilohms
MRC:
The name of the government agency or commercial organization controlling the earphone.BKSS
Earphone Controlling Agency:
Us army communications and electronics materiel readiness command
MRC:
An identifying number assigned by the government agency or commerical organization controlling the earphone.BKST
Earphone Identifying Number:
Sm-b-933877 part no.
MRC:
Indicates the type of microphone element or cartridge as determined by its construction and method of operation.BKSW
Microphone Element Type:
Dynamic
MRC:
An indication of the rated electrical output of the item.BKSX
Output Level Rating:
Minus 56 db at 1 khz output level
MRC:
The means of attaching the earphone.BKSY
Earphone Mounting Method:
Suspended on headband
MRC:
The means provided to mount or otherwise accommodate a microphone.BKSZ
Microphone Mounting Facility:
Adapter fastened to left earphone
MRC:
The nomenclature by which the connector is identified.BKTB
Connector Name:
Plug
MRC:
A number assigned to the connector for purpose of ready identification.BKTF
Connector Identifying Number:
U-182/u type no.
MRC:
A measurement of the longest dimension of the cord from a connector to a junction,in distinction from width.BKTG
Connector To Junction Cord Length:
12.763 feet
MRC:
The name of the government agency or commercial organization controlling the connector.BLJN
Connector Controlling Agency:
Jetds
MRC:
The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.TEST
Test Data Document:
81349-mil-h-83511 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.).
