The Disk,valve, cataloged under National Stock Number 4820-01-554-5083, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Maxim Evaporators of America, Llc Dba Maxim Evaporators Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-554-5083 |
| Primary Part Number | 153-003-D-063ITEM7 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Maxim Evaporators of America, Llc Dba Maxim Evaporators Llc |
| Status | ACTIVE |
| Material | RUBBER |
| 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 |
|---|---|
| 153-003-D-063ITEM7 PRIMARY | Maxim Evaporators of America, Llc Dba Maxim Evaporators Llc (USA) |
| Reference | Meaning |
|---|---|
| 153-003-D-063 | D/9 Drawing number reference only Beaird Industries Inc. |
| 153-003-D-063ITEM7 | 5/9 Secondary reference Beaird Industries Inc. |
NSN 4820-01-554-5083 is a Disk,valve, manufactured by Maxim Evaporators of America, Llc Dba Maxim Evaporators Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-554-5083 has 1 manufacturer part number on file: 153-003-D-063ITEM7 (Maxim Evaporators of America, Llc Dba Maxim Evaporators Llc).
Key specifications for 153-003-D-063ITEM7: Special Features: 1/8 IN. THICK X 3 1/4 I.D. X 4 3/8 IN; End Item Identification: 4820-01-553-5794; VACUUM BREAKER ASSEMBLY FOR CVN BOUNDRY AREA.; Material: RUBBER. 1 specification is 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.