The Plunger Relief Val, cataloged under National Stock Number 4810-01-511-5747, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Plunger Relief Val |
| FSC / FSG | 4810 — Valves, Powered (FSG 48) |
| Manufacturers | Hunt Valve Company, Inc. (CAGE 11859) |
| Parameter | Value |
|---|---|
| NSN | 4810-01-511-5747 |
| Primary Part Number | P333-001/G |
| Item Name | Plunger Relief Val |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Hunt Valve Company, Inc. |
| 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 |
|---|---|
| P333-001/G PRIMARY | Hunt Valve Company, Inc. (USA) |
| P120-520-01 MK 22 | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| P333-001/G | 3/9 Design control — primary reference Hunt Valve Company, Inc. |
| P120-520-01 MK 22 | 5/9 Secondary reference Hunt Valve Company, Inc. |
| P120-520-01 | D/9 Drawing number reference only Hunt Valve Company, Inc. |
NSN 4810-01-511-5747 is a Plunger Relief Val, manufactured by Hunt Valve Company, Inc., classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-511-5747 has 2 manufacturer part numbers on file: P333-001/G (Hunt Valve Company, Inc.), P120-520-01 MK 22 (Hunt Valve Company, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4810-01-511-5766. Verify interchangeability with system specifications before substitution.
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.