The Cover Plate,valve, cataloged under National Stock Number 4820-01-545-4491, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-545-4491 |
| Primary Part Number | 2641-807-01 ITEM 29AL1 |
| Item Name | Cover Plate,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 2643-820-05 ITEM 10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2641-807-01 ITEM 29AL1 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-7286110 ITEM 10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2643-820-05 ITEM 10 | 3/1 Design control — primary reference U.S. Government activity |
| 2641-807-01 ITEM 29A | 3/1 Design control — primary reference U.S. Government activity |
| 845-7286110 ITEM 10 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 4820-01-545-4491 is a Cover Plate,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-545-4491 has 3 manufacturer part numbers on file: 2643-820-05 ITEM 10L1 (Naval Inventory Control Point Mechanicsburg), 2641-807-01 ITEM 29AL1 (Naval Inventory Control Point Mechanicsburg), 845-7286110 ITEM 10L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 2641-807-01 ITEM 29AL1: End Item Identification: VALVE, BALL, 1.50IPS. 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.