The Strainer,sediment, cataloged under National Stock Number 4730-01-321-6471, 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 Fabrotech Industries 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-321-6471 |
| Primary Part Number | B4-250 1.5IN |
| Item Name | Strainer,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Fabrotech Industries Inc |
| Status | ACTIVE |
| Filtering Media Design | PERFORATED SINGLE FILTERING MEDIA RESPONSE |
| Distance From Bottom of Body to Center of Inlet | 4.188 INCHES NOMINAL IN |
| Temp Rating | 425.0 FAHRENHEIT NOMINAL DEGF |
| First Intake Connection Type | INTERNAL SOLDER LINE |
| Perforation Quantity | 144.0 PER SQUARE INCH |
| Style Designator | Y STRAINER W/THREADED COVER |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Body Length | 5.375 INCHES NOMINAL IN |
| First Intake Nominal Inside Diameter | 1.500 INCHES IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | WATER |
| Material | COPPER ALLOY BODY |
| Material | NICKEL ALLOY FILTERING MEDIUM |
| Perforation Diameter | 0.062 INCHES NOMINAL IN |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION LINE |
| 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 |
|---|---|
| B4-250 1.5IN PRIMARY | Fabrotech Industries Inc (USA) |
NSN 4730-01-321-6471 is a Strainer,sediment, manufactured by Fabrotech Industries Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-321-6471 has 1 manufacturer part number on file: B4-250 1.5IN (Fabrotech Industries Inc).
Key specifications for B4-250 1.5IN: Filtering Media Design: PERFORATED SINGLE FILTERING MEDIA RESPONSE; Distance From Bottom of Body to Center of Inlet: 4.188 INCHES NOMINAL IN; Temp Rating: 425.0 FAHRENHEIT NOMINAL DEGF; First Intake Connection Type: INTERNAL SOLDER 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.