The Ringer,telephone, cataloged under National Stock Number 5805-01-103-0452, is classified within Federal Supply Class 5805 (Telephone and Telegraph Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ringer,telephone |
| FSC / FSG | 5805 — Telephone and Telegraph Equipment (FSG 58) |
| Manufacturers | Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi (CAGE 1FWB4) |
| Parameter | Value |
|---|---|
| NSN | 5805-01-103-0452 |
| Primary Part Number | SE400AQ |
| Item Name | Ringer,telephone |
| FSC / FSG | 5805 / 58 — Telephone and Telegraph Equipment |
| Manufacturer | Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi |
| Status | ACTIVE |
| 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 |
|---|---|
| SE400AQ PRIMARY | Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi (USA) |
| Reference | Meaning |
|---|---|
| SE-400 | 5/9 Secondary reference Suttle Apparatus Corp |
| SE400AQ | 3/9 Design control — primary reference Suttle Apparatus Corp |
NSN 5805-01-103-0452 is a Ringer,telephone, manufactured by Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi, classified under FSC 5805, Telephone and Telegraph Equipment. Status: active.
NSN 5805-01-103-0452 has 1 manufacturer part number on file: SE400AQ (Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi).
1 possible match (shared part number, not a government interchangeability claim): 4240-01-623-1957. Verify interchangeability with system specifications before substitution.
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.