The Orifice Plate,valve, cataloged under National Stock Number 4820-01-181-3638, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-181-3638 |
| Primary Part Number | 2850-0021-23CP |
| Item Name | Orifice Plate,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | CLEAN IN ACCORDANCE WITH MIL-C-52211 |
| 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 |
|---|---|
| 2850-0021-23CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 2371-037 PIECE 22CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2850-0021-23 | 5/9 Secondary reference Mission Systems Orchard Park Inc |
| 2371-037 PIECE 22 | 5/1 Secondary reference Mission Systems Orchard Park Inc |
| 2850-0021-23 | 3/1 Design control — primary reference Carleton Technologies Inc Div Tampa Facility |
NSN 4820-01-181-3638 is a Orifice Plate,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-181-3638 has 2 manufacturer part numbers on file: 2850-0021-23CP (Naval Inventory Control Point Mechanicsburg), 2371-037 PIECE 22CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for 2850-0021-23CP: Reference Number Differentiating Characteristics: CLEAN IN ACCORDANCE WITH MIL-C-52211. 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.