The Deflector,dirt and Liquid, cataloged under National Stock Number 4320-00-398-5693, 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. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-398-5693 |
| Primary Part Number | NA51497MPC21 |
| Item Name | Deflector,dirt and Liquid |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| FSC Application Data | CENTRIFUGAL PUMP |
| Angle Between Centerlines of Mounting Holes in Deg | 90.0 |
| Step Length | 0.375 INCHES NOMINAL IN |
| Style Designator | ROUND, STEPPED |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Material Thickness | 0.500 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Inside Diameter | 0.750 INCHES MINIMUM AND 0.751 INCHES MAXIMUM IN |
| Step Diameter | 1.375 INCHES NOMINAL IN |
| Thread Class | 2B |
| Material | COPPER ALLOY |
| Thread Size and Series/type Designator | 0.250-20 UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| NA51497MPC21 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N51497SPC21 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N51497RPC21 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N51497RITEMGK PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N52150EPC20 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| N51497QPC21 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| N51497SPC21 | 5/9 Secondary reference U.S. Government activity |
| N52150EPC20 | 5/9 Secondary reference Ingersoll-Rand Co Standard Pump-Aldrich Div |
| N52150EPC20 | 5/9 Secondary reference U.S. Government activity |
| N51497RITEMGK | 5/9 Secondary reference Ingersoll-Rand Co Standard Pump-Aldrich Div |
| NA51497MPC21 | 5/9 Secondary reference U.S. Government activity |
| NA51497MPC21 | 5/9 Secondary reference Ingersoll-Rand Co Standard Pump-Aldrich Div |
| N51497RPC21 | 5/9 Secondary reference Ingersoll-Rand Co Standard Pump-Aldrich Div |
| N51497RPC21 | 5/9 Secondary reference U.S. Government activity |
| N51497QPC21 | 5/9 Secondary reference U.S. Government activity |
| N51497SPC21 | 5/9 Secondary reference Ingersoll-Rand Co Standard Pump-Aldrich Div |
| N51497QPC21 | 5/9 Secondary reference Ingersoll-Rand Co Standard Pump-Aldrich Div |
| N51497RITEMGK | 5/9 Secondary reference U.S. Government activity |
NSN 4320-00-398-5693 is a Deflector,dirt and Liquid, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-398-5693 has 6 manufacturer part numbers on file: NA51497MPC21 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), N51497SPC21 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), N51497RPC21 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), N51497RITEMGK (Curtiss-Wright Electro-Mechanical Corporation Div Epd), N52150EPC20 (Curtiss-Wright Electro-Mechanical Corporation Div Epd) and 1 more.
Key specifications for NA51497MPC21: Mounting Hole Quantity: 2; FSC Application Data: CENTRIFUGAL PUMP; Angle Between Centerlines of Mounting Holes in Deg: 90.0; Step Length: 0.375 INCHES NOMINAL IN. 14 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.