The Stud,manway Cover, cataloged under National Stock Number 4420-01-143-1586, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4420-01-143-1586 |
| Primary Part Number | 9MW6-1002L1 |
| Item Name | Stud,manway Cover |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| General Characteristics Item Description | NICKEL COPPER ALUMINUM,QQ-N-00286C |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| 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 |
|---|---|
| 9MW6-1002L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 482T7003-2 ITEM 13L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 482T7003-2 ITEM 13 | 5/1 Secondary reference Carrier Corp |
| 9MW6-1002 | 3/1 Design control — primary reference Carrier Corp |
NSN 4420-01-143-1586 is a Stud,manway Cover, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-143-1586 has 2 manufacturer part numbers on file: 9MW6-1002L1 (Naval Inventory Control Point Mechanicsburg), 482T7003-2 ITEM 13L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 9MW6-1002L1: General Characteristics Item Description: NICKEL COPPER ALUMINUM,QQ-N-00286C; Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 3 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.