The Strainer,sediment, cataloged under National Stock Number 4730-01-490-0159, 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 Rotaryaire Compressor Corp. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-490-0159 |
| Primary Part Number | DWS-20A |
| Item Name | Strainer,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rotaryaire Compressor Corp |
| Status | ACTIVE |
| Filtering Media Design | MESH SINGLE FILTERING MEDIA RESPONSE |
| Mounting Hole Quantity | 4 |
| Distance From Bottom of Body to Center of Inlet | 7.0625 INCHES NOMINAL IN |
| Center to Center Distance Between Connections | 7.0625 INCHES NOMINAL IN |
| Body Width | 11.000 INCHES NOMINAL IN |
| Body Height | 14.750 INCHES NOMINAL IN |
| First Intake Connection Type | RAISED FACE FLANGE SIDE NEAR TOP |
| Style Designator | TWIN STRAINER W/BOLTED COVER |
| Mounting Hole Diameter | 0.625 INCHES NOMINAL IN |
| Features Provided | CLEANING BLADES AND DRAIN PLUG |
| Body Length | 12.875 INCHES NOMINAL IN |
| Second Intake Connection Type | RAISED FACE FLANGE SIDE NEAR TOP |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | AIR AND WATER |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION AND UNTHREADED HOLE SIDE NEAR TOP |
| 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 |
|---|---|
| DWS-20A PRIMARY | Rotaryaire Compressor Corp (USA) |
NSN 4730-01-490-0159 is a Strainer,sediment, manufactured by Rotaryaire Compressor Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-490-0159 has 1 manufacturer part number on file: DWS-20A (Rotaryaire Compressor Corp).
Key specifications for DWS-20A: Filtering Media Design: MESH SINGLE FILTERING MEDIA RESPONSE; Mounting Hole Quantity: 4; Distance From Bottom of Body to Center of Inlet: 7.0625 INCHES NOMINAL IN; Center to Center Distance Between Connections: 7.0625 INCHES NOMINAL IN. 15 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.