The Filter Subassembly, cataloged under National Stock Number 5915-01-078-3280, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Caes Mission Systems Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5915-01-078-3280 |
| Primary Part Number | 403021-1 |
| Item Name | Filter Subassembly |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Caes Mission Systems Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 403021-1 PRIMARY | Caes Mission Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 403021-1 | 5/9 Secondary reference Vega Precision Laboratories Inc Sub of Herley Industries Inc |
NSN 5915-01-078-3280 is a Filter Subassembly, manufactured by Caes Mission Systems Llc, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-01-078-3280 has 1 manufacturer part number on file: 403021-1 (Caes Mission Systems Llc).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-731-9879. Verify interchangeability with system specifications before substitution.
Key specifications for 403021-1: Special Features: ASSY C/O 5 COIL ASSYS,2 CAPACITORS ENCASED IN RECTANGULAR SHAPED CASE,CONNECTOR ON EA SIDE. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.