The Transmitting Set,infrared, cataloged under National Stock Number 5850-00-644-4735, is classified within Federal Supply Class 5850 (Visible and Invisible Light Communication Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5850-00-644-4735 |
| Item Name | Transmitting Set,infrared |
| FSC / FSG | 5850 / 58 — Visible and Invisible Light Communication Equipment |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | AS MOD BY W/EQUIP SPARES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| ANSAT2 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5850-00-644-4735 is a Transmitting Set,infrared, classified under FSC 5850, Visible and Invisible Light Communication Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5850-00-665-1141. Verify interchangeability with system specifications before substitution.
Key specifications for 5850-00-644-4735: Special Features: ELEC MODULATION;0.75 TO 1.2 MICRONS WAVE LG RANGE;ENERGY SOURCE TUNGSTEN LAMP 300W OUTPUT RATE;REFLECTOR LENS OPT SYST;BEAM SPREAD 360 HOR 110 VERT DEG ANGLE;ALT OPER PWR RQMT AC 115V 60 HZ 1 PH DC 115 V;COMPLEMENT LIST JETDS 1 TRANSMITTER CONT TYPE C-1356/SAT-2,2 EA INFRARED TRANSMITTER TYPE T-438/SAT-2,TELEGRAPH KEY TYPE KY-129/SAT-2;GENL PURPOSE USE;FIXED INSTALLATION;COMPONENT LIST DOC BUSHIPS INSTR BK NAVSHIPS 92169 PG 1-1 V; Reference Number Differentiating Characteristics: AS MOD BY W/EQUIP SPARES. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5850-00-644-4735 has DEMIL Code C. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.