The Collar,thrust Pump, cataloged under National Stock Number 4320-01-188-1891, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is English Electric Corp. 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-188-1891 |
| Primary Part Number | PL-RW/820334-A20 FIND A6 |
| Item Name | Collar,thrust Pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | English Electric Corp |
| Status | ACTIVE |
| General Characteristics Item Description | CAST IRON |
| 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 |
|---|---|
| PL-RW/820334-A20 FIND A6 PRIMARY | English Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| PL-RW/820334-A2 | C/1 Advisory reference — outside the item-of-supply concept English Electric Corp |
| RW/820334-A20 | D/9 Drawing number reference only Brown David Vehicle Products Ltd |
| DS-82-110 | C/1 Advisory reference — outside the item-of-supply concept David Brown Gear Systems Limited |
| DS-82-110 | 5/9 Secondary reference David Brown Special Products Ltd |
| RW/820334-A21 | 5/9 Secondary reference David Brown Special Products Ltd |
| DS-82-110 | 5/9 Secondary reference Brown David Vehicle Products Ltd |
| RW/820334-A20 | 5/9 Secondary reference David Brown Special Products Ltd |
| RW/820334-A21 | D/9 Drawing number reference only Brown David Vehicle Products Ltd |
NSN 4320-01-188-1891 is a Collar,thrust Pump, manufactured by English Electric Corp, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-188-1891 has 1 manufacturer part number on file: PL-RW/820334-A20 FIND A6 (English Electric Corp).
3 possible matches (shared part number, not a government interchangeability claim): 5365-01-188-1892, 4320-01-189-3319, 4320-01-189-7362. Verify interchangeability with system specifications before substitution.
Key specifications for PL-RW/820334-A20 FIND A6: General Characteristics Item Description: CAST IRON. 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.