The Elbow,pipe, cataloged under National Stock Number 4730-01-248-2445, 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 Naval Sea Systems Command. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-248-2445 |
| Primary Part Number | 526-558273 ITEM 143 |
| Item Name | Elbow,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Nominal Thread Size | 1.500 INCHES FIRST END IN |
| Nominal Thread Size | 2.000 INCHES SECOND END IN |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| 526-558273 ITEM 143 PRIMARY | Naval Sea Systems Command (USA) |
| 2282-832 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 5101-399 PRIMARY | Flagg Stanley G & Co Inc Dba Flagg Brass (USA) |
| 2402099 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 00699067521414 | 5/1 Secondary reference Flagg Stanley G & Co Inc Dba Flagg Brass |
| 526-5588273 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4730-01-248-2445 is a Elbow,pipe, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-248-2445 has 4 manufacturer part numbers on file: 526-558273 ITEM 143 (Naval Sea Systems Command), 2282-832 (Huntington Ingalls Inc Div Newport News Shipbuilding), 5101-399 (Flagg Stanley G & Co Inc Dba Flagg Brass), 2402099 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 526-558273 ITEM 143: Flow Angle: 90.0 DEGREES; Connection Style: PLAIN (PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Nominal Thread Size: 1.500 INCHES FIRST END IN. 7 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.