The Mech. Seal Seat, cataloged under National Stock Number 4320-01-441-9743, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-441-9743 |
| Primary Part Number | P0289500 |
| Item Name | Mech. Seal Seat |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| 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 |
|---|---|
| P0289500 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| RX-174010 ITEM 65 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| RX-174010 | D/9 Drawing number reference only U.S. Government activity |
| RX-174010 ITEM 65 | 5/9 Secondary reference U.S. Government activity |
| P0289500 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4320-01-441-9743 is a Mech. Seal Seat, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-441-9743 has 2 manufacturer part numbers on file: P0289500 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), RX-174010 ITEM 65 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for P0289500: Special Features: USED ON MODEL D-1021, CENTRIFUGAL PUMP; End Item Identification: MARS CLASS AFS. 0 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.