The Cover and Spring,valve, cataloged under National Stock Number 4220-01-348-0727, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Robert Fulton Company. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4220-01-348-0727 |
| Primary Part Number | A-128-9HD |
| Item Name | Cover and Spring,valve |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Robert Fulton Company |
| 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 |
| Part Number | Manufacturer |
|---|---|
| A-128-9HD | Robert Fulton Company (USA) |
| A-128-9HD | Jefferson Metal Stampings Inc Dba Sdi (USA) |
| Reference | Meaning |
|---|---|
| DRV0 | 5/9 Secondary reference Robert Fulton Company |
| A-128-9HD | 3/9 Design control — primary reference U.S. Government activity |
| A128-9B | 5/9 Secondary reference Knapp-Monarch Co |
NSN 4220-01-348-0727 is a Cover and Spring,valve, manufactured by Robert Fulton Company, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-348-0727 has 2 manufacturer part numbers on file: A-128-9HD (Robert Fulton Company), A-128-9HD (Jefferson Metal Stampings Inc Dba Sdi).
Key specifications for A-128-9HD: Special Features: VALVE COVER WITH SPRING. 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.