The Ring,lantern, cataloged under National Stock Number 4320-01-183-4540, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Acme Products & Engineering Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-183-4540 |
| Primary Part Number | 43-DHAP |
| Item Name | Ring,lantern |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Acme Products & Engineering Inc |
| Status | ACTIVE |
| Outside Diameter | 2.969 INCHES NOMINAL IN |
| Inside Diameter | 2.312 INCHES NOMINAL IN |
| Height | 0.812 INCHES NOMINAL IN |
| 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 |
|---|---|
| 43-DHAP PRIMARY | Acme Products & Engineering Inc (USA) |
| Reference | Meaning |
|---|---|
| 28060 PIECE 43 | 5/9 Secondary reference Frederick Custom Machining Inc |
| 43-DH | 3/9 Design control — primary reference Frederick Custom Machining Inc |
NSN 4320-01-183-4540 is a Ring,lantern, manufactured by Acme Products & Engineering Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-183-4540 has 1 manufacturer part number on file: 43-DHAP (Acme Products & Engineering Inc).
Key specifications for 43-DHAP: Outside Diameter: 2.969 INCHES NOMINAL IN; Inside Diameter: 2.312 INCHES NOMINAL IN; Height: 0.812 INCHES NOMINAL IN; Special Features: SOLID TYPE. 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.