The Valve,float, cataloged under National Stock Number 4820-01-485-4054, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-485-4054 |
| Item Name | Valve,float |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Connection Style | BEVELED (PIPE) ALL ENDS |
| Criticality Code Justification | ZZZY |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Material Document and Classification | ASTMA494 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | MIL-R-8324B MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | MIL-R-8324B MIL SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material | NICKEL ALLOY BODY |
| Material | TITANIUM FLOW CONTROL DEVICE |
| Material | RUBBER FLUOROCARBON CLASS FPM SEAT |
| Valve Operation Method | AUTOMATIC |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-1070 MATERIAL IDEN |
| 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 |
|---|---|
| 2643-1005 ASSY IRA | 5/1 Secondary reference U.S. Government activity |
| 845-7285124 ASSY IRA | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4820-01-485-4054 is a Valve,float, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-485-4054: Flow Control Device: BALL; Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN; Connection Style: BEVELED (PIPE) ALL ENDS; Criticality Code Justification: ZZZY. 13 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 4820-01-485-4054 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.