The Strainer,sediment, cataloged under National Stock Number 4730-01-428-9871, 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 Staples & Pfeiffer, Inc.. Government technical data includes 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-428-9871 |
| Primary Part Number | DWG973 6IN250LB FLGE 1/16PERF |
| Item Name | Strainer,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Staples & Pfeiffer, Inc. |
| Status | ACTIVE |
| Filtering Media Design | PERFORATED SINGLE FILTERING MEDIA RESPONSE |
| Distance From Bottom of Body to Center of Inlet | 15.500 INCHES NOMINAL IN |
| First Intake Flange Thickness | 1.188 INCHES NOMINAL IN |
| First Intake Flange Outside Diameter | 10.125 INCHES NOMINAL IN |
| First Intake Connection Type | PLAIN FACE FLANGE LINE |
| Perforation Quantity | 144.0 PER SQUARE INCH |
| Style Designator | Y STRAINER W/BOLTED COVER |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FILTERING MEDIUM |
| Material Document and Classification | QQ-C-390, ALLOY 922 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| First Intake Flange Shape Style | ROUND W/UNTHREADED BOLT HOLES |
| Specification/standard Data | 81348-WW-S-2739 GOVERNMENT SPECIFICATION |
| Body Length | 20.750 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | D TYPE AND 60 STYLE |
| 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 | 0.057 INCHES NOMINAL IN |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION LINE |
| 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 |
|---|---|
| DWG973 6IN250LB FLGE 1/16PERF PRIMARY | Staples & Pfeiffer, Inc. (USA) |
| Reference | Meaning |
|---|---|
| MIL-S-2739,Y-TY | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| WW-S-2739D60 | 4/1 Identification reference U.S. Government activity |
NSN 4730-01-428-9871 is a Strainer,sediment, manufactured by Staples & Pfeiffer, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-428-9871 has 1 manufacturer part number on file: DWG973 6IN250LB FLGE 1/16PERF (Staples & Pfeiffer, Inc.).
Key specifications for DWG973 6IN250LB FLGE 1/16PERF: Filtering Media Design: PERFORATED SINGLE FILTERING MEDIA RESPONSE; Distance From Bottom of Body to Center of Inlet: 15.500 INCHES NOMINAL IN; First Intake Flange Thickness: 1.188 INCHES NOMINAL IN; First Intake Flange Outside Diameter: 10.125 INCHES NOMINAL IN. 21 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.