The Trunnion Cam,pump, cataloged under National Stock Number 4320-01-283-0841, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-283-0841 |
| Primary Part Number | 2A7-1703 |
| Item Name | Trunnion Cam,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE,2 IN. DIA,3 1/2 IN. LG 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 |
|---|---|
| 2A7-1703 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2D3-990 ITEM 21 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| 2D3-990 PC 21 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
NSN 4320-01-283-0841 is a Trunnion Cam,pump, manufactured by Lake Shore Systems, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-283-0841 has 1 manufacturer part number on file: 2A7-1703 (Lake Shore Systems, Inc.).
Key specifications for 2A7-1703: General Characteristics Item Description: BRONZE,2 IN. DIA,3 1/2 IN. LG IN. 1 specification is 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.