The Union,pipe, cataloged under National Stock Number 4730-01-183-0609, 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 15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-183-0609 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Connection Style | SOCKET (PIPE) ALL ENDS |
| Nominal Overall Length | 4.870 INCHES IN |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | UNTHREADED |
| Material Document and Classification | QQ-S-763,CL 304,COND A FED SPEC SINGLE MATERIAL RESPONSE TAILPIECE |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | QQ-S-763,CL 304,COND A FED SPEC SINGLE MATERIAL RESPONSE THREAD PIECE |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Seat Type | GASKET |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 40 ALL ENDS |
| Material | NICKEL ALLOY NUT |
| Material | STEEL COMP 304 THREAD PIECE |
| Material | STEEL COMP 304 TAILPIECE |
| Reference Number Differentiating Characteristics | UNION DIFFERENTIATED BY LENGTH |
| 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 |
|---|---|
| 2621-791-03 ASSY 100 MOD | 3/1 Design control — primary reference U.S. Government activity |
| 4684599F20 | 5/1 Secondary reference U.S. Government activity |
| 4684599 | D/9 Drawing number reference only U.S. Government activity |
| 2621-791-03 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-183-0609 is a Union,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-183-0609: Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN; Connection Style: SOCKET (PIPE) ALL ENDS; Nominal Overall Length: 4.870 INCHES IN; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS. 15 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.