The Pump,reciprocating, cataloged under National Stock Number 4320-01-388-9255, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Ship Street Capital, Llc Dba Edson Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-388-9255 |
| Primary Part Number | 55422 |
| Item Name | Pump,reciprocating |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Ship Street Capital, Llc Dba Edson Corporation |
| Status | ACTIVE |
| Pumping Element Type | DIAPHRAGM |
| Pumping Element Operating Position | HORIZONTAL |
| Operating Speed at Rated Capacity | 30.0 STROKES PER MINUTE |
| Discharge Pressure | .0 WATER CONSERVING - WATER SAVING TECHNOLOGIES - LOW-FLOW PRE-RINSE SPRAY VALVES |
| Maximum Discharge Flow Rate | 30.0 GALLONS PER MINUTE |
| Operation Method | MANUAL |
| 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 |
|---|---|
| 55422 PRIMARY | Ship Street Capital, Llc Dba Edson Corporation (USA) |
| Reference | Meaning |
|---|---|
| 554BR-200 | 5/9 Secondary reference Ship Street Capital, Llc Dba Edson Corporation |
| 554R-200 | 5/9 Secondary reference Ship Street Capital, Llc Dba Edson Corporation |
NSN 4320-01-388-9255 is a Pump,reciprocating, manufactured by Ship Street Capital, Llc Dba Edson Corporation, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-388-9255 has 1 manufacturer part number on file: 55422 (Ship Street Capital, Llc Dba Edson Corporation).
1 possible match (shared part number, not a government interchangeability claim): 1080-01-541-2661. Verify interchangeability with system specifications before substitution.
Key specifications for 55422: Pumping Element Type: DIAPHRAGM; Pumping Element Operating Position: HORIZONTAL; Operating Speed at Rated Capacity: 30.0 STROKES PER MINUTE; Discharge Pressure: .0 WATER CONSERVING - WATER SAVING TECHNOLOGIES - LOW-FLOW PRE-RINSE SPRAY VALVES. 6 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.