The Strainer,sediment, cataloged under National Stock Number 4730-01-143-4404, 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 Flowserve Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-143-4404 |
| Primary Part Number | SW-2271-1/2IN |
| Item Name | Strainer,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Filtering Media Design | MESH SINGLE FILTERING MEDIA RESPONSE |
| Temp Rating | 100.0 FAHRENHEIT NOMINAL DEGF |
| Mesh Size | 40.0 |
| First Intake Connection Type | SOCKET WELDING LINE |
| Style Designator | Y STRAINER W/THREADED COVER |
| Material Document and Classification | ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Body Length | 3.000 INCHES NOMINAL IN |
| First Intake Nominal Inside Diameter | 0.500 INCHES IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | ANY ACCEPTABLE |
| Material | STEEL BODY |
| Material | STEEL COMP 316 FILTERING MEDIUM |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION LINE |
| 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 |
|---|---|
| SW-2271-1/2IN PRIMARY | Flowserve Inc (USA) |
| Reference | Meaning |
|---|---|
| F-47552 | D/9 Drawing number reference only Flowserve Inc |
NSN 4730-01-143-4404 is a Strainer,sediment, manufactured by Flowserve Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-143-4404 has 1 manufacturer part number on file: SW-2271-1/2IN (Flowserve Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-313-7318. Verify interchangeability with system specifications before substitution.
Key specifications for SW-2271-1/2IN: Filtering Media Design: MESH SINGLE FILTERING MEDIA RESPONSE; Temp Rating: 100.0 FAHRENHEIT NOMINAL DEGF; Mesh Size: 40.0; First Intake Connection Type: SOCKET WELDING LINE. 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.