The Ring,lantern, cataloged under National Stock Number 4320-01-272-4645, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-272-4645 |
| Primary Part Number | 2080-186 ITEM 8 |
| Item Name | Ring,lantern |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Outside Diameter | 3.746 INCHES NOMINAL IN |
| Inside Diameter | 3.031 INCHES NOMINAL IN |
| Height | 1.000 INCHES NOMINAL IN |
| Material | COPPER ALLOY 957 OVERALL |
| 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 |
|---|---|
| 2080-186 ITEM 8 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 408-5901730 ITE | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 2080-186 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4320-01-272-4645 is a Ring,lantern, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-272-4645 has 1 manufacturer part number on file: 2080-186 ITEM 8 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 2080-186 ITEM 8: Outside Diameter: 3.746 INCHES NOMINAL IN; Inside Diameter: 3.031 INCHES NOMINAL IN; Height: 1.000 INCHES NOMINAL IN; Material: COPPER ALLOY 957 OVERALL. 4 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.