The Stem,fluid Valve, cataloged under National Stock Number 4820-01-671-4133, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. The record lists 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Stem,fluid Valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950); Mission Systems Orchard Park Inc (CAGE 04577) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-671-4133 |
| Primary Part Number | 7550478-3423-5001-19-3D4 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 7550478-3423-5001-19-3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1970 002-10-2113 ITEM 03 | Mission Systems Orchard Park Inc (USA) |
| 7383858-1970 002 ITEM 03D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1970 002-24N2113 ITEM 03 | Mission Systems Orchard Park Inc (USA) |
| 3423-5001-19-3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-3423-5001-19-3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1970 002-10-2113 ITEM 03D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| B12143-1D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 3423-5001-19-3 | Mission Systems Orchard Park Inc (USA) |
| G547-0002-1970-002-3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1970 002 ITEM 03 | Mission Systems Orchard Park Inc (USA) |
| 1970 002 ITEM 03D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550478-1970-002-3D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 1970 002-24N2113 ITEM 03D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 7550478-1970-002-3 | 5/1 Secondary reference Naval Sea Systems Command |
| 7550478-3423-5001-19-3 | 5/1 Secondary reference Naval Sea Systems Command |
| G547-0002-3423-5001-19-3 | 5/2 Secondary reference U.S. Government activity |
| 7383858-1970 002 ITEM 03 | 3/1 Design control — primary reference Naval Sea Systems Command |
| G547-0002-1970-002-3 | 5/2 Secondary reference U.S. Government activity |
| B12143-1 | 5/1 Secondary reference Mission Systems Orchard Park Inc |
NSN 4820-01-671-4133 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-671-4133 has 14 manufacturer part numbers on file: 7550478-3423-5001-19-3D4 (Naval Inventory Control Point Mechanicsburg), 1970 002-10-2113 ITEM 03 (Mission Systems Orchard Park Inc), 7383858-1970 002 ITEM 03D4 (Naval Inventory Control Point Mechanicsburg), 1970 002-24N2113 ITEM 03 (Mission Systems Orchard Park Inc), 3423-5001-19-3D4 (Naval Inventory Control Point Mechanicsburg) and 9 more.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-733-6002. 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.