The Deflector,dirt and Liquid, cataloged under National Stock Number 4320-01-372-5504, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is U S Filter/kisco. Government technical data includes 5 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-372-5504 |
| Primary Part Number | C56-170 PIECE 2 |
| Item Name | Deflector,dirt and Liquid |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | U S Filter/kisco |
| Status | ACTIVE |
| Mounting Hole Quantity | 1 |
| Thread Direction | RIGHT-HAND |
| Material | STEEL CORROSION RESISTING |
| Thread Size and Series/type Designator | 0.750-14 NPT |
| Mounting Hole Type | THREADED |
| 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 |
|---|---|
| C56-170 PIECE 2 PRIMARY | U S Filter/kisco (USA) |
| Reference | Meaning |
|---|---|
| C56-170 | D/9 Drawing number reference only U S Filter/kisco |
NSN 4320-01-372-5504 is a Deflector,dirt and Liquid, manufactured by U S Filter/kisco, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-372-5504 has 1 manufacturer part number on file: C56-170 PIECE 2 (U S Filter/kisco).
Key specifications for C56-170 PIECE 2: Mounting Hole Quantity: 1; Thread Direction: RIGHT-HAND; Special Features: WATER DISTRIBUTOR (DIFFUSER) ON SERVICE INLET AND OUTLET IN WATER DEMINERALIZER PRESSURE VESSEL (TANK); O/A LENGTH 5.5IN.,O/D 2.0IN.; 0.002 SLOTS,NO. 63 WIRE AND ROD ON 4.0IN. LONG SCREEN; SOLID CAP IN; End Item Identification: DEMINERALIZER,KISCO BOILER AND ENGINEERING CO.,PMB 1630SS. 5 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.