The Reducer,pipe, cataloged under National Stock Number 4730-00-880-9502, 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 Inventory Control Point Mechanicsburg. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-880-9502 |
| Primary Part Number | 803-1385945 PC1 4X31/2INL1 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 4.000 INCHES SECOND END IN |
| Nominal Pipe Size Accommodated | 3.500 INCHES FIRST END IN |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Style | REDUCED SOCKET W/ GROOVE (PIPE) FIRST END |
| Nominal Overall Length | 2.312 INCHES IN |
| Criticality Code Justification | ZZZY |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | UNTHREADED EXTERNAL PIPE SECOND END |
| Material Document and Classification | MIL-C-15726,TEMPER SOFT MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE STD FIRST END |
| Material | COPPER ALLOY 715 OVERALL |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 803-1385945 PC1 4X31/2INL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 810-1385945 PC1 4X31/2INL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 810-1385945 PC1 4X31/2IN | 3/1 Design control — primary reference U.S. Government activity |
| 803-1385945 PC1 4X31/2IN | 5/1 Secondary reference U.S. Government activity |
NSN 4730-00-880-9502 is a Reducer,pipe, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-880-9502 has 2 manufacturer part numbers on file: 803-1385945 PC1 4X31/2INL1 (Naval Inventory Control Point Mechanicsburg), 810-1385945 PC1 4X31/2INL1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 803-1385945 PC1 4X31/2INL1: Nominal Pipe Size Accommodated: 4.000 INCHES SECOND END IN; Nominal Pipe Size Accommodated: 3.500 INCHES FIRST END IN; Connection Style: PLAIN (PIPE) SECOND END; Connection Style: REDUCED SOCKET W/ GROOVE (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.