The Valve,vacuum Breaking, cataloged under National Stock Number 4820-01-307-2898, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nissan Diesel America Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-307-2898 |
| Primary Part Number | 14552-99000 |
| Item Name | Valve,vacuum Breaking |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Nissan Diesel America Inc |
| Status | ACTIVE |
| Flow Control Device | DISK, FLAT |
| Body Style | SINGLE CONNECTION, STRAIGHT FLOW |
| End Connection Quantity | 1 |
| First End Connection Type | THREADED EXTERNAL GAS CYLINDER |
| Media for Which Designed | AIR |
| 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 |
|---|---|
| 14552-99000 | Ud Trucks Corporation (JPN) |
| 14552-99000 PRIMARY | Nissan Diesel America Inc (USA) |
| Reference | Meaning |
|---|---|
| 14552-99000 | 5/9 Secondary reference Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| 14552-99000 | 5/9 Secondary reference Nissan Diesel Motor Co. |
NSN 4820-01-307-2898 is a Valve,vacuum Breaking, manufactured by Nissan Diesel America Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-307-2898 has 2 manufacturer part numbers on file: 14552-99000 (Ud Trucks Corporation), 14552-99000 (Nissan Diesel America Inc).
Key specifications for 14552-99000: Flow Control Device: DISK, FLAT; Body Style: SINGLE CONNECTION, STRAIGHT FLOW; End Connection Quantity: 1; First End Connection Type: THREADED EXTERNAL GAS CYLINDER. 5 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.