The Rotor,pump, cataloged under National Stock Number 4320-01-133-2406, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Compass Water Solutions, Inc. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-133-2406 |
| Primary Part Number | RO27 |
| Item Name | Rotor,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Compass Water Solutions, Inc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Material | STEEL COMP 316 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| RO27 PRIMARY | Compass Water Solutions, Inc (USA) |
| 990 PRIMARY | Compass Water Solutions, Inc (USA) |
| Reference | Meaning |
|---|---|
| 990 | 5/9 Secondary reference Separation & Recovery Systems Inc |
| 36701 ITEM 22 | C/1 Advisory reference — outside the item-of-supply concept Robbins and Myers Inc |
| 36701 | D/9 Drawing number reference only Separation & Recovery Systems Inc |
| 330-2042-000 | 5/9 Secondary reference Robbins and Myers Inc |
| 36701 ITEM 22 | 5/9 Secondary reference Separation & Recovery Systems Inc |
| U4-67PS | 5/9 Secondary reference Continental Pump Co P O Box 428 Warrenton Mo 63383-0428 |
NSN 4320-01-133-2406 is a Rotor,pump, manufactured by Compass Water Solutions, Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-133-2406 has 2 manufacturer part numbers on file: RO27 (Compass Water Solutions, Inc), 990 (Compass Water Solutions, Inc).
7 possible matches (shared part number, not a government interchangeability claim): 4320-01-133-2407, 4730-01-133-4055, 4320-01-133-7411. Verify interchangeability with system specifications before substitution.
Key specifications for RO27: Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; End Item Identification: USNS HENRY J. KAISER CLASS TAO, MERCY AND COMFORT HOSPITAL SHIPS CLASS TAH, BOB HOPE CLASS T-AKR 300, KILAUEA CLASS T-AE 26, OLIVER PERRY CLASS FFG.QOIL WATER SPERATOR SYSTEM (OWS). PURIFIERS.; Material: STEEL COMP 316. 2 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.