The Reducer,pipe, cataloged under National Stock Number 4730-01-077-5947, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-077-5947 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 3.500 INCHES FIRST END IN |
| Nominal Pipe Size Accommodated | 2.500 INCHES SECOND END IN |
| Connection Style | BEVELED (PIPE) SECOND END |
| Connection Style | BEVELED (PIPE) FIRST END |
| Nominal Overall Length | 4.000 INCHES IN |
| Connection Type | BUTT WELD PIPE FIRST END |
| Connection Type | BUTT WELD PIPE SECOND END |
| Departure From Cited Document | QUALITY CONTROLLED IN ACCORDANCE WITH NAVSUP CONTROL INSTRUCTIONS FOR SURF LEVEL 1 ITEMS |
| Nondefinitive Spec/std Data | 80 SCHEDULE AND BUTTWELD DESIGN AND 3 1/2 X 2 1/2 SIZE |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 80 FIRST END |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 80 SECOND END |
| Material | STEEL OVERALL |
| Reducer Type | CONCENTRIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| ANSI-B16.9 SCH80 3 1/2X2 1/4INS1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| ANSI-B16.9 SCH80 3 1/2IN | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-01-077-5947 is a Reducer,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-077-5947: Nominal Pipe Size Accommodated: 3.500 INCHES FIRST END IN; Nominal Pipe Size Accommodated: 2.500 INCHES SECOND END IN; Connection Style: BEVELED (PIPE) SECOND END; Connection Style: BEVELED (PIPE) FIRST END. 13 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.