The Plenum Assembly, cataloged under National Stock Number 5865-01-195-0857, is classified within Federal Supply Class 5865 (Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Plenum Assembly |
| FSC / FSG | 5865 — Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment (FSG 58) |
| Manufacturers | Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc (CAGE 2S308); Spencer Industries Inc (CAGE 21530) |
| Parameter | Value |
|---|---|
| NSN | 5865-01-195-0857 |
| Primary Part Number | SMC920439 |
| Item Name | Plenum Assembly |
| FSC / FSG | 5865 / 58 — Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment |
| Manufacturer | Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| SMC920439 | Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc (USA) |
| SM-C-920439 | Spencer Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| SM-C-920439 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5865-01-195-0857 is a Plenum Assembly, manufactured by Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc, classified under FSC 5865, Electronic Countermeasures, Counter-countermeasures and Quick Reaction Capability Equipment. Status: active.
NSN 5865-01-195-0857 has 2 manufacturer part numbers on file: SMC920439 (Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc), SM-C-920439 (Spencer Industries Inc).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5865-01-195-0857 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.