The Cps Bag Prefilter 4, cataloged under National Stock Number 4240-01-610-3440, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Staclean Diffuser Co Llc Dba Staclean Diffuser. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Cps Bag Prefilter 4 |
| FSC / FSG | 4240 — Safety and Rescue Equipment (FSG 42) |
| Manufacturers | Staclean Diffuser Co Llc Dba Staclean Diffuser (CAGE 0ATN2); Naval Sea Systems Command (CAGE 53711) |
| Parameter | Value |
|---|---|
| NSN | 4240-01-610-3440 |
| Primary Part Number | USNBG3 |
| Item Name | Cps Bag Prefilter 4 |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Staclean Diffuser Co Llc Dba Staclean Diffuser |
| 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 |
NSN 4240-01-610-3440 is a Cps Bag Prefilter 4, manufactured by Staclean Diffuser Co Llc Dba Staclean Diffuser, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-610-3440 has 2 manufacturer part numbers on file: USNBG3 (Staclean Diffuser Co Llc Dba Staclean Diffuser), 8477562-4 (Naval Sea Systems Command).
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.