The Valve,plug, cataloged under National Stock Number 4820-01-020-5310, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-020-5310 |
| Item Name | Valve,plug |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Connection Style | GASKET SEAL(BOSS) FIRST END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES FIRST END IN |
| Flow Style | FOUR-WAY FOUR PORT 90 DEGREE PLUG TURN |
| Thread Direction | RIGHT-HAND FIRST END |
| Seat Angle | 45.0 DEGREES FIRST END |
| Mounting Facility | THREADED FASTENER |
| Thread Class | 3B FIRST END |
| Material | RUBBER SYNTHETIC PACKING |
| Material | ALUMINUM ALLOY BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 744-24D3 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-01-020-5310 is a Valve,plug, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-065-3289. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-020-5310: Connection Style: GASKET SEAL(BOSS) FIRST END; Connection Type: THREADED INTERNAL TUBE FIRST END; Nominal Outside Diameter Tube Accommodated: 1.500 INCHES FIRST END IN; Flow Style: FOUR-WAY FOUR PORT 90 DEGREE PLUG TURN. 10 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.
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.