NSN 4220-01-563-2524, 4220015632524
BUDDY PHONE SURFACE

Federal Supply Classification: FSC 4220 - Marine Lifesaving and Diving Equipment
National Item Identification Number: NIIN 015632524
Codification Country: United States
Item Name Code: INC 77777
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 4220-01-563-2524

National Stock Number (NSN) 4220-01-563-2524, or NIIN 015632524, (buddy phone surface) was assigned May 6, 2008 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 4 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 77777. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4220015632524 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

PART NAME ASSIGNED BY CONTROLLING AGENCY: (CXCY) SP-100D SURFACE BUDDY PHONE
OVERALL HEIGHT: (ABKW) 7.850 INCHES NOMINAL
OVERALL LENGTH: (ABHP) 3.400 INCHES NOMINAL
OVERALL WIDTH: (ABMK) 9.000 INCHES NOMINAL
SPECIAL FEATURES: (FEAT) COMPACT AND OPERATES ON(8)AA ALKALINE BATTERIES;FOR EXTREME LONG LIFE TWO BATTERY PACKS(16 AA) BATTERIES CAN BE UTILISED;NOMINAL RANGE 50 TO 500 METERS;REFERENCE FREQUENCY 32.768 KHZ UPPER SINGLE SIDEBAND;AUDIO BANDWITH 300HZ TO 3000HZ;AUTOMATIC GAIN CONTROL GREATER THAN 100 DB;TRANSMITTER/AUDIO OUTPUT 1/2 WATT(TRANSMITTER),1/2 WATT(SPEAKER);HANDHELD,PUSH TO TALK,DYNAMIC,5OHM IMPEDANCE MICROPHONE;TRANSDUCER ENCAPSULATED CERAMIC ATTACHED TO A 35 FTCABLE WITH CONNECTORS;SQUELCH DIGITAL,USING HOMAN VOICE RECOGNITION;LOW BATTERY ALARM 1 BEEP EVERY 60 SECONDS WHENBATTERY LEVEL IS BELOW 7 VOLTS;RECORD-OUT LINE LEVEL VIA PANEL RCA JACK;EXTERNAL POWER 12V,DC AT MIN OF 1 AMP ACCESS VIA FRONT PANEL MINI DOUBLE BANANA PLUG