The Housing,liquid Pump, cataloged under National Stock Number 4320-01-342-3471, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Pumps North America Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-342-3471 |
| Primary Part Number | S8504MK |
| Item Name | Housing,liquid Pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Pump Design Control Activity | 59180 |
| Pump Model Number for Which Designed | FM423HTSX-630J |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| S8504MK PRIMARY | Circor Pumps North America Llc (USA) |
| SF10993 PIECE 26 | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| SF10992 | D/9 Drawing number reference only Circor Pumps North America Llc |
NSN 4320-01-342-3471 is a Housing,liquid Pump, manufactured by Circor Pumps North America Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-342-3471 has 2 manufacturer part numbers on file: S8504MK (Circor Pumps North America Llc), SF10993 PIECE 26 (Circor Pumps North America Llc).
Key specifications for S8504MK: Pump Design Control Activity: 59180; Special Features: INCLUDES PIECE 27 UPPER ROTOR HOUSING,PIECE 28 LOWER ROTOR HOUSING OF BRONZE QQ-C-390 ALLOY C93700 ASTM B505,B584 OR B271; PIECE 29 HEX BOLT 7/8-9X2-3/4 OF STEEL MIL-S-001222 TY 1,GR 5,ASTM A449 AND NYLON MIL-F-18240 TY A OR B; PIECE 30 318 X 7/8 DOWEL PIN OF STEEL MIL-P-21143 CL 1,ANSI B18.8.2 TBL 2; Pump Model Number for Which Designed: FM423HTSX-630J; Material: COPPER ALLOY. 3 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.