The Filter Assembly,emi, cataloged under National Stock Number 1220-01-077-8932, is classified within Federal Supply Class 1220 (Fire Control Computing Sights and Devices) of the Fire Control Equipment group. The manufacturer of record is B.c. Systems Inc. Dba Bc Systems Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Filter Assembly,emi |
| FSC / FSG | 1220 — Fire Control Computing Sights and Devices (FSG 12) |
| Manufacturers | B.c. Systems Inc. Dba Bc Systems Inc (CAGE 48313) |
| Parameter | Value |
|---|---|
| NSN | 1220-01-077-8932 |
| Primary Part Number | 104858 |
| Item Name | Filter Assembly,emi |
| FSC / FSG | 1220 / 12 — Fire Control Computing Sights and Devices |
| Manufacturer | B.c. Systems Inc. Dba Bc Systems Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 104858 PRIMARY | B.c. Systems Inc. Dba Bc Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 104858 | 5/9 Secondary reference Tempo Instrument Inc Defense Electronics Div |
NSN 1220-01-077-8932 is a Filter Assembly,emi, manufactured by B.c. Systems Inc. Dba Bc Systems Inc, classified under FSC 1220, Fire Control Computing Sights and Devices. Status: active.
NSN 1220-01-077-8932 has 1 manufacturer part number on file: 104858 (B.c. Systems Inc. Dba Bc Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-342-5322. 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.