The Stem,fluid Valve, cataloged under National Stock Number 4820-01-279-9823, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-279-9823 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Stem Actuating End Type | ROUNDED |
| Criticality Code Justification | ZZZY |
| Material | NICKEL ALLOY |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 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 |
| Reference | Meaning |
|---|---|
| 77553-24X1 PC4L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 2144477 PC4L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 77553-24X1 PC 4 | 5/1 Secondary reference U.S. Government activity |
| 2144477 PC 4 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4820-01-279-9823 is a Stem,fluid Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-279-9823: Stem Actuating End Type: ROUNDED; Criticality Code Justification: ZZZY; End Item Identification: ESCAPE TRUNK FLOOD VALVE FWD AND AFT-BALL VALVE; Material: NICKEL ALLOY. 4 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 4820-01-279-9823 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.