The Trap,moisture, cataloged under National Stock Number 4730-01-234-1872, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Measurement Science Directorate Corona Div Naval Surface Warfare Center Po Box 5000 Corona Ca 92878-5000. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-234-1872 |
| Primary Part Number | D-404 |
| Item Name | Trap,moisture |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Measurement Science Directorate Corona Div Naval Surface Warfare Center Po Box 5000 Corona Ca 92878-5000 |
| Status | ACTIVE |
| Outlet Connection Type and Quantity | 1 THREADED INTERNAL PIPE |
| Inlet Connection Nominal Pipe Size | 1.625 INCHES IN |
| Outlet Connection Nominal Pipe Size | 0.250 INCHES IN |
| Outlet Thread Direction | RIGHT-HAND |
| Outlet Thread Series Designator | NPT |
| Overall Outside Diameter | 1.625 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND INLET |
| Inlet Thread Series Designator | UN |
| Outlet Thread Quantity Per Inch | 18 |
| Inlet Connection Type and Quantity | 1 THREADED INTERNAL PIPE |
| Material | STEEL CORROSION RESISTING BODY |
| Inlet Thread Quantity Per Inch | 18 |
| 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 |
|---|---|
| D-404 ETCD0880N | Measurement Science Directorate Corona Div Naval Surface Warfare Center Po Box 5000 Corona Ca 92878-5000 (USA) |
| D-404 PRIMARY | Measurement Science Directorate Corona Div Naval Surface Warfare Center Po Box 5000 Corona Ca 92878-5000 (USA) |
| Reference | Meaning |
|---|---|
| D-404D1 | D/9 Drawing number reference only Measurement Science Directorate Corona Div Naval Surface Warfare Center Po Box 5000 Corona Ca 92878-5000 |
| D-404 | C/1 Advisory reference — outside the item-of-supply concept Naval Submarine Base Bangor |
NSN 4730-01-234-1872 is a Trap,moisture, manufactured by Measurement Science Directorate Corona Div Naval Surface Warfare Center Po Box 5000 Corona Ca 92878-5000, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-234-1872 has 2 manufacturer part numbers on file: D-404 ETCD0880N (Measurement Science Directorate Corona Div Naval Surface Warfare Center Po Box 5000 Corona Ca 92878-5000), D-404 (Measurement Science Directorate Corona Div Naval Surface Warfare Center Po Box 5000 Corona Ca 92878-5000).
Key specifications for D-404: Outlet Connection Type and Quantity: 1 THREADED INTERNAL PIPE; Overall Height: 3.125 INCHES NOMINAL IN; Inlet Connection Nominal Pipe Size: 1.625 INCHES IN; Outlet Connection Nominal Pipe Size: 0.250 INCHES IN. 12 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.