The Nipple,pipe, cataloged under National Stock Number 4730-01-703-1810, 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 12 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-703-1810 |
| Item Name | Nipple,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Width Across Flats | 12.0 INCHES ALL ENDS IN |
| Thread Tolerance Class | 0.125 SHOW ME THIS EXTERNAL ALL ENDS |
| Nominal Pipe Size Accommodated | 2.0 INCHES ALL ENDS IN |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Style Designator | THREADED INTERNAL |
| Leg Length | 12.0 INCHES NOMINAL ALL ENDS IN |
| Specification/standard Data | 81346-AST-733 GOVERNMENT STANDARD |
| Nominal Outside Diameter | 2.375 INCHES ALL ENDS IN |
| Media for Which Designed | FLUID SINGLE RESPONSE |
| Material | STEEL 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 |
| Reference | Meaning |
|---|---|
| ASTM-A733 | 3/1 Design control — primary reference U.S. Government activity |
| MS51873-207 | 5/9 Secondary reference U.S. Government activity |
| MS51873 | 5/9 Secondary reference U.S. Government activity |
| A733XS-207CFG | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-703-1810 is a Nipple,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-703-1810: Nominal Width Across Flats: 12.0 INCHES ALL ENDS IN; Thread Tolerance Class: 0.125 SHOW ME THIS EXTERNAL ALL ENDS; Nominal Pipe Size Accommodated: 2.0 INCHES ALL ENDS IN; Connection Style: PLAIN (PIPE) ALL ENDS. 12 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.