The Monitor Assembly,po, cataloged under National Stock Number 1285-01-149-0048, is classified within Federal Supply Class 1285 (Fire Control Radar Equipment, Except Airborne) of the Fire Control Equipment group. The manufacturer of record is Telephonics Corp/prd Instruments. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1285-01-149-0048 |
| Primary Part Number | 664-S1 |
| Item Name | Monitor Assembly,po |
| FSC / FSG | 1285 / 12 — Fire Control Radar Equipment, Except Airborne |
| Manufacturer | Telephonics Corp/prd Instruments |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF CALORIMETER 1; AMMETER 1; MONITORS RADIO FREQUENCY AND MEASURES POWER LEVEL IN A COAXIAL LINE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 664-S1 PRIMARY | Telephonics Corp/prd Instruments (USA) |
| Reference | Meaning |
|---|---|
| 2312437-1 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 664-S1 | 5/9 Secondary reference Peraton Inc |
NSN 1285-01-149-0048 is a Monitor Assembly,po, manufactured by Telephonics Corp/prd Instruments, classified under FSC 1285, Fire Control Radar Equipment, Except Airborne. Status: active.
NSN 1285-01-149-0048 has 1 manufacturer part number on file: 664-S1 (Telephonics Corp/prd Instruments).
Key specifications for 664-S1: General Characteristics Item Description: CONSISTS OF CALORIMETER 1; AMMETER 1; MONITORS RADIO FREQUENCY AND MEASURES POWER LEVEL IN A COAXIAL LINE. 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.
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.