The Valve,vacuum Breaking, cataloged under National Stock Number 4820-01-296-0397, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Thomas Industries Inc Pneumotive Div. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-296-0397 |
| Primary Part Number | L14004 |
| Item Name | Valve,vacuum Breaking |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Thomas Industries Inc Pneumotive Div |
| Status | ACTIVE |
| First End Thread Direction | RIGHT-HAND |
| First End Style Designator | PLAIN |
| End Connection Quantity | 1 |
| First End Connection Type | THREADED EXTERNAL PIPE |
| Temp Adjustability | NOT ADJUSTABLE |
| Absolute Pressure Setting | 1.8 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| L14004 PRIMARY | Thomas Industries Inc Pneumotive Div (USA) |
| Reference | Meaning |
|---|---|
| L14004 | 5/9 Secondary reference Fl Industries Inc Pneumotive Div |
NSN 4820-01-296-0397 is a Valve,vacuum Breaking, manufactured by Thomas Industries Inc Pneumotive Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-296-0397 has 1 manufacturer part number on file: L14004 (Thomas Industries Inc Pneumotive Div).
Key specifications for L14004: First End Thread Direction: RIGHT-HAND; First End Style Designator: PLAIN; End Connection Quantity: 1; First End Connection Type: THREADED EXTERNAL PIPE. 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.
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.