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NSN: 5920-00-004-0272
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Part Numbers

Item Number Item Description
351SVSR2 Protector, Telephone
351GFS2 Protector, Telephone
351FSR Protector, Telephone

Master Requirement Codes

Code Translation
ALGC The pattern or arrangement that describes the mounting configuration of the item.
ABKW The distance measured in a straight line from the bottom to the top of an item.
ANPZ An indication of the feature/s/ of the inclosure.
ABBH The element, compound, or mixture of which the inclosure is fabricated, excluding any surface treatment.
ABHP The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
ABMK An overall measurement taken at right angles to the length of an item, in distinction from thickness.
AQAN The number of wires the item can accommodate.
ALBY Indicates the designed use of the item.

351FSR Telephone Protector

Cage 77554

Technical Definition

Protector, Telephone, also referenced with federal logistics item name code 00383 - An item specifically designed to protect the phone circuits against high potentials, such as lightning and/or abnormal electrical currents. it may include an inclosure, but does not always include the protective components such as protector blocks, heat coils, and/or fuses. excludes items which may be used in other than telephone circuits. see also arrester, lightning and fuseholder.

Technical Characteristics

Mounting Configuration (ALGC):
Two unthreaded mtg holes
Overall Height (ABKW):
1.781 inches nominal
Inclosure Feature (ANPZ):
Box with slip-over cover
Inclosure Material (ABBH):
Overall Length (ABHP):
3.312 inches nominal
Overall Width (ABMK):
2.922 inches nominal
Wire Quantity (AQAN):
3 wires
Usage Design (ALBY):

National Stock Number (NSN)