The Call-Signal Station, cataloged under National Stock Number 5830-01-316-0551, is classified within Federal Supply Class 5830 (Intercommunication and Public Address Systems, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is W. & O. Supply, Inc. Dba Emi Div Emi. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5830-01-316-0551 |
| Primary Part Number | M8821 |
| Item Name | Call-Signal Station |
| FSC / FSG | 5830 / 58 — Intercommunication and Public Address Systems, Except Airborne |
| Manufacturer | W. & O. Supply, Inc. Dba Emi Div Emi |
| 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 |
|---|---|
| M8821 PRIMARY | W. & O. Supply, Inc. Dba Emi Div Emi (USA) |
NSN 5830-01-316-0551 is a Call-Signal Station, manufactured by W. & O. Supply, Inc. Dba Emi Div Emi, classified under FSC 5830, Intercommunication and Public Address Systems, Except Airborne. Status: active.
NSN 5830-01-316-0551 has 1 manufacturer part number on file: M8821 (W. & O. Supply, Inc. Dba Emi Div Emi).
1 possible match (shared part number, not a government interchangeability claim): 2590-01-399-5864. Verify interchangeability with system specifications before substitution.
Key specifications for M8821: End Item Identification: WATCHCALL SYSTEM. 0 specifications are 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.