The Vent Line and Screw, cataloged under National Stock Number 4820-00-375-7523, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 16 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-375-7523 |
| Item Name | Vent Line and Screw |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| 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 |
|---|---|
| 319-2100-1188459ALT2PCJ3K3L3 | 3/2 Design control — primary reference U.S. Government activity |
| 341-2200-1188408ALT4PCE3F3J3 | 3/2 Design control — primary reference U.S. Government activity |
| 3773-84REVBPCV20 | 3/2 Design control — primary reference U.S. Government activity |
| 564-2409-936855ALT5PCB3C3T4 | 3/2 Design control — primary reference U.S. Government activity |
| 341-2200-1188408ALT4PCE3F3G3 | 3/2 Design control — primary reference U.S. Government activity |
| 319-4800-1183739ALT3PC1T03 | 3/2 Design control — primary reference U.S. Government activity |
| T1-4801-1286355REVAPC4-13-14 | 3/2 Design control — primary reference U.S. Government activity |
| K1-2100-1000348ALT6PCH4 | 3/2 Design control — primary reference U.S. Government activity |
| K1-2200-1000037ALT1PCB3D3E3 | 3/2 Design control — primary reference U.S. Government activity |
| K1-2200-1000036PCB3E3F3 | 3/2 Design control — primary reference U.S. Government activity |
| 2963-71ALT5PCB3C3T4 | 5/9 Secondary reference U.S. Government activity |
| 340-2200-1000453PCE3F3G3 | 3/2 Design control — primary reference U.S. Government activity |
| 575-4501-1442936REVBPCV20 | 3/2 Design control — primary reference U.S. Government activity |
| 4823-3177096PC3 | 5/2 Secondary reference U.S. Government activity |
| 240-2200-1036060REVAPC9-12-13 | 3/2 Design control — primary reference U.S. Government activity |
| 340-2200-1000453PCE3F3J3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-375-7523 is a Vent Line and Screw, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-375-7523: End Item Identification: VALVE ORIFICE 1-2IN IN. 0 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.