The Stop Plate,valve, cataloged under National Stock Number 4820-01-184-4515, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Portland Valve Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-184-4515 |
| Primary Part Number | V-7576 |
| Item Name | Stop Plate,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CRES.STEEL |
| 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 |
|---|---|
| V-7663 PIECE 8 | Tyco Fire Products Lp (USA) |
| V-7576 PRIMARY | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| V-7663 | D/9 Drawing number reference only Tyco Fire Products Lp |
NSN 4820-01-184-4515 is a Stop Plate,valve, manufactured by Portland Valve Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-184-4515 has 2 manufacturer part numbers on file: V-7663 PIECE 8 (Tyco Fire Products Lp), V-7576 (Portland Valve Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-185-4396. Verify interchangeability with system specifications before substitution.
Key specifications for V-7576: General Characteristics Item Description: CRES.STEEL. 1 specification is documented in the U.S. Government catalog.
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.