The Valve,discharge,upper, cataloged under National Stock Number 4320-01-198-2950, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Neptune Chemical Pump Co Div of R a Industries Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-198-2950 |
| Primary Part Number | 105U |
| Item Name | Valve,discharge,upper |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Neptune Chemical Pump Co Div of R a Industries Inc |
| Status | ACTIVE |
| General Characteristics Item Description | STAINLESS STEEL 316 |
| 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 |
|---|---|
| SERWD347PC105U | Neptune Chemical Pump Co Div of R a Industries Inc (USA) |
| 105U PRIMARY | Neptune Chemical Pump Co Div of R a Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 000070 | C/1 Advisory reference — outside the item-of-supply concept Neptune Chemical Pump Co Div of R a Industries Inc |
NSN 4320-01-198-2950 is a Valve,discharge,upper, manufactured by Neptune Chemical Pump Co Div of R a Industries Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-198-2950 has 2 manufacturer part numbers on file: SERWD347PC105U (Neptune Chemical Pump Co Div of R a Industries Inc), 105U (Neptune Chemical Pump Co Div of R a Industries Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5411-01-602-3138, 6635-01-673-0796. Verify interchangeability with system specifications before substitution.
Key specifications for 105U: General Characteristics Item Description: STAINLESS STEEL 316; End Item Identification: 4320-01-019-9018. 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.