The Stem,fluid Valve, cataloged under National Stock Number 4820-01-128-9650, 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 6 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-128-9650 |
| Primary Part Number | 803-2177141-3XX-78 MOD D2164L1 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Valve Type for Which Designed | GLOBE |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Criticality Code Justification | ZZZY |
| Valve Size for Which Designed | 3.000 INCHES IN |
| Material | STEEL CORROSION RESISTING |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 803-2177141-3XX-78 MOD D2164L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 803-2177141-3XX-53 M0D D2164L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 803-2177141-3XX-78 MOD D2164 | 3/1 Design control — primary reference U.S. Government activity |
| 803-2177141-3XX-53 M0D D2164 | 5/1 Secondary reference U.S. Government activity |
NSN 4820-01-128-9650 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-128-9650 has 2 manufacturer part numbers on file: 803-2177141-3XX-78 MOD D2164L1 (Naval Inventory Control Point Mechanicsburg), 803-2177141-3XX-53 M0D D2164L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 803-2177141-3XX-78 MOD D2164L1: Valve Type for Which Designed: GLOBE; Stem Actuating End Type: THREADED EXTERNALLY; Criticality Code Justification: ZZZY; Valve Size for Which Designed: 3.000 INCHES IN. 6 specifications are 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.
NSN 4820-01-128-9650 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.