The Ring,wearing, cataloged under National Stock Number 4320-01-384-3203, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-384-3203 |
| Primary Part Number | N-999-6011-B-001ITEM3VM |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Material | NICKEL ALLOY |
| Reference Number Differentiating Characteristics | MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| N-999-6011-B-001ITEM3VM | Naval Inventory Control Point Mechanicsburg (USA) |
| 007-11N-C-01-304VM | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 007-11N-C-01-304 | 3/1 Design control — primary reference Carver Pump Company |
| US7-11N-C-01-30 | C/1 Advisory reference — outside the item-of-supply concept Carver Pump Company |
| N-999-6011-B-001ITEM3 | 5/1 Secondary reference Carver Pump Company |
| 007-11N-C-01-30 | C/1 Advisory reference — outside the item-of-supply concept Carver Pump Company |
NSN 4320-01-384-3203 is a Ring,wearing, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-384-3203 has 2 manufacturer part numbers on file: N-999-6011-B-001ITEM3VM (Naval Inventory Control Point Mechanicsburg), 007-11N-C-01-304VM (Naval Inventory Control Point Mechanicsburg).
Key specifications for N-999-6011-B-001ITEM3VM: Criticality Code Justification: ZZZY; End Item Identification: PUMP CTFGL; Material: NICKEL ALLOY; Reference Number Differentiating Characteristics: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION. 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.