The Strainer,sediment, cataloged under National Stock Number 4730-01-180-8541, 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 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-180-8541 |
| Primary Part Number | ST051030BFM005 |
| 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 SINGLE FILTERING MEDIA RESPONSE |
| Mounting Hole Quantity | 4 |
| Distance From Bottom of Body to Center of Inlet | 8.875 INCHES NOMINAL IN |
| Body Width | 13.500 INCHES NOMINAL IN |
| Body Height | 17.875 INCHES NOMINAL IN |
| First Intake Connection Type | PLAIN FACE FLANGE SIDE |
| Style Designator | TWIN STRAINER W/BOLTED COVER |
| First Intake Flange Shape Style | ROUND W/UNTHREADED BOLT HOLES |
| Body Length | 22.000 INCHES NOMINAL IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Material | COPPER ALLOY BODY |
| Perforation Diameter | 0.438 INCHES NOMINAL IN |
| Mounting Type | UNTHREADED HOLE BOTTOM |
| First Intake Flange Face Style | PLAIN |
| 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 |
|---|---|
| ST051030BFM005 PRIMARY | Haywardindl. Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| M0DEL 50-3IN | C/1 Advisory reference — outside the item-of-supply concept Haywardindl. Products, Inc. |
| MODEL 50 3IN | 5/9 Secondary reference Haywardindl. Products, Inc. |
| ST050-0300-11CA 3IN | 5/9 Secondary reference Haywardindl. Products, Inc. |
NSN 4730-01-180-8541 is a Strainer,sediment, manufactured by Haywardindl. Products, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-180-8541 has 1 manufacturer part number on file: ST051030BFM005 (Haywardindl. Products, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-280-8397. Verify interchangeability with system specifications before substitution.
Key specifications for ST051030BFM005: Filtering Media Design: PERFORATED SINGLE FILTERING MEDIA RESPONSE; Mounting Hole Quantity: 4; Distance From Bottom of Body to Center of Inlet: 8.875 INCHES NOMINAL IN; Body Width: 13.500 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.