The Cap,flue, cataloged under National Stock Number 4520-01-575-5578, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Cap,flue |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc (CAGE 51419) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-575-5578 |
| Primary Part Number | 111057 |
| Item Name | Cap,flue |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc |
| 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 |
|---|---|
| 111057 PRIMARY | Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc (USA) |
NSN 4520-01-575-5578 is a Cap,flue, manufactured by Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-575-5578 has 1 manufacturer part number on file: 111057 (Watts Heating and Hot Water Solutions Llc Dba Pvi Industries Llc).
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.