The Ring,lantern, cataloged under National Stock Number 4320-01-203-4765, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-203-4765 |
| Primary Part Number | 2080-33 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 | 3.744 INCHES MINIMUM AND 3.746 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-B-21230,ALLOY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Inside Diameter | 3.031 INCHES NOMINAL IN |
| Height | 1.000 INCHES NOMINAL IN |
| Material | COPPER ALLOY 955 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 |
|---|---|
| 2080-33 ITEM 8 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 408-4457279 ITEM 8 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 408-4457279 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4320-01-203-4765 is a Ring,lantern, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-203-4765 has 2 manufacturer part numbers on file: 2080-33 ITEM 8 (Huntington Ingalls Inc Div Newport News Shipbuilding), 408-4457279 ITEM 8 (Huntington Ingalls Inc Div Newport News Shipbuilding).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-207-7649. Verify interchangeability with system specifications before substitution.
Key specifications for 2080-33 ITEM 8: Outside Diameter: 3.744 INCHES MINIMUM AND 3.746 INCHES MAXIMUM IN; Material Document and Classification: MIL-B-21230,ALLOY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Inside Diameter: 3.031 INCHES NOMINAL IN; Height: 1.000 INCHES NOMINAL IN. 5 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.