The Coupling,pipe, cataloged under National Stock Number 4730-01-351-5879, 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 18 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-351-5879 |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | ROUND SECOND END |
| Flange Shape | ROUND FIRST END |
| Flange Face Design | PLAIN FIRST END |
| Flange Face Design | PLAIN SECOND END |
| Surface Treatment Document and Classification | MIL-C-22750 TYPE I MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Overall Length | 2.750 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | FLANGE FIRST END |
| Style Designator | PLAIN |
| Nominal Outside Diameter | 3.120 INCHES FIRST END IN |
| Nominal Outside Diameter | 3.120 INCHES SECOND END IN |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 5S FIRST END |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 5S SECOND END |
| Surface Treatment | PAINT OVERALL |
| Media for Which Designed | WATER SINGLE RESPONSE |
| Material | STEEL COMP 316 OVERALL |
| Nominal Thickness | 0.090 INCHES SECOND END IN |
| Nominal Thickness | 0.090 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 13229E0708 | D/9 Drawing number reference only U.S. Government activity |
| 120-07574 | 3/9 Design control — primary reference Aqua-Chem, Inc. |
| 13229E0708-3 | 3/2 Design control — primary reference U.S. Government activity |
| 120-07574 | 5/1 Secondary reference Aqua-Chem, Inc. Dba Aqua-Chem Inc |
NSN 4730-01-351-5879 is a Coupling,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-351-5879: Flange Shape: ROUND SECOND END; Flange Shape: ROUND FIRST END; Flange Face Design: PLAIN FIRST END; Flange Face Design: PLAIN SECOND END. 18 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.