The Strainer,sediment, cataloged under National Stock Number 4730-01-291-1810, 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 Haywardindl. Products, Inc.. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-291-1810 |
| Primary Part Number | STO53015BT11TS |
| Item Name | Strainer,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Haywardindl. Products, Inc. |
| Status | ACTIVE |
| Filtering Media Design | PERFORATED FIRST FILTERING MEDIA RESPONSE |
| Filtering Media Design | MESH SECOND FILTERING MEDIA RESPONSE |
| Distance From Bottom of Body to Center of Inlet | 5.000 INCHES NOMINAL IN |
| First Intake Nominal Thread Size | 1.500 INCHES IN |
| First Intake Thread Series Designator | NPT |
| First Intake Thread Direction | RIGHT-HAND |
| Body Width | 7.625 INCHES NOMINAL IN |
| Mesh Size | 40.0 |
| First Intake Connection Type | THREADED INTERNAL PIPE CENTER |
| Style Designator | TWIN STRAINER W/BOLTED COVER |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Body Length | 15.000 INCHES NOMINAL IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | WATER |
| Material | COPPER ALLOY BODY |
| Perforation Diameter | 0.375 INCHES NOMINAL IN |
| Wire Diameter | 0.010 INCHES NOMINAL IN |
| 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 |
|---|---|
| STO53015BT11TS PRIMARY | Haywardindl. Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 50 1-1/2IN | 5/9 Secondary reference Haywardindl. Products, Inc. |
| STO51015BT11A | 5/9 Secondary reference Haywardindl. Products, Inc. |
| 50T 1-1/2IN BRZ 3/8PERF/40MESH | 5/9 Secondary reference Haywardindl. Products, Inc. |
NSN 4730-01-291-1810 is a Strainer,sediment, manufactured by Haywardindl. Products, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-291-1810 has 1 manufacturer part number on file: STO53015BT11TS (Haywardindl. Products, Inc.).
Key specifications for STO53015BT11TS: Filtering Media Design: PERFORATED FIRST FILTERING MEDIA RESPONSE; Filtering Media Design: MESH SECOND FILTERING MEDIA RESPONSE; Distance From Bottom of Body to Center of Inlet: 5.000 INCHES NOMINAL IN; First Intake Nominal Thread Size: 1.500 INCHES IN. 17 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.