The Strainer,sediment, cataloged under National Stock Number 4730-01-440-1749, 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 Carver Pump Company. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-440-1749 |
| Primary Part Number | 250-0477-320 |
| Item Name | Strainer,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Second Discharge Connection Relationship to Preceding Connection | IDENTICAL TO FIRST DISCHARGE CONNECTION |
| Mounting Hole Quantity | 2 |
| First Intake Nominal Thread Size | 0.375 INCHES IN |
| Mounting Facility Nominal Thread Size | 0.375 INCHES IN |
| First Intake Connection Type | THREADED INTERNAL TUBE TOP SIDE |
| Material Document and Classification | MIL-P-25732C FED SPEC SINGLE MATERIAL RESPONSE SEAL |
| Material Document and Classification | QQ-N-281D CL A OR B FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Mounting Hole Diameter | 0.375 INCHES NOMINAL IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | WATER |
| Mounting Facility Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Bracket Quantity | 1 |
| Material | RUBBER SYNTHETIC SEAL |
| Material | NICKEL ALLOY BODY |
| Mounting Type | BRACKET W/THREADED HOLE AND THREADED STUD SIDE |
| 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 |
|---|---|
| N-999-6091-B-001 ITEM 41 | Carver Pump Company (USA) |
| 250-0477-320 PRIMARY | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| N-999-6091-B-001 | D/9 Drawing number reference only Carver Pump Company |
NSN 4730-01-440-1749 is a Strainer,sediment, manufactured by Carver Pump Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-440-1749 has 2 manufacturer part numbers on file: N-999-6091-B-001 ITEM 41 (Carver Pump Company), 250-0477-320 (Carver Pump Company).
Key specifications for 250-0477-320: Second Discharge Connection Relationship to Preceding Connection: IDENTICAL TO FIRST DISCHARGE CONNECTION; Mounting Hole Quantity: 2; First Intake Nominal Thread Size: 0.375 INCHES IN; Mounting Facility Nominal Thread Size: 0.375 INCHES IN. 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.