The Union,pipe, cataloged under National Stock Number 4730-01-136-0791, 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 Hydrasearch Company, Llc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-136-0791 |
| Primary Part Number | 656PCLX-2 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 1.306 INCHES FIRST END1.306 INCHES FIRST END IN |
| Connection Style | PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END |
| Connection Style | STREAMLINED W/ ONE BRAZING RING (PIPE) FIRST ENDSTREAMLINED W/ ONE BRAZING RING (PIPE) FIRST END |
| Nominal Overall Length | 4.690 INCHES4.690 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND ENDTHREADED EXTERNAL PIPE SECOND END |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST ENDUNTHREADED INTERNAL PIPE FIRST END |
| Style Designator | SCREWEDSCREWED |
| Seat Type | RECESSEDRECESSED |
| Nominal Thread Size | 1.500 INCHES SECOND END1.500 INCHES SECOND END IN |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | NPT SECOND ENDNPT SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 656PCLX-2 PRIMARY | Hydrasearch Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 656PCLX-2 1IN M | C/1 Advisory reference — outside the item-of-supply concept Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging |
NSN 4730-01-136-0791 is a Union,pipe, manufactured by Hydrasearch Company, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-136-0791 has 1 manufacturer part number on file: 656PCLX-2 (Hydrasearch Company, Llc).
Key specifications for 656PCLX-2: Nominal Pipe Size Accommodated: 1.306 INCHES FIRST END1.306 INCHES FIRST END IN; Connection Style: PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END; Connection Style: STREAMLINED W/ ONE BRAZING RING (PIPE) FIRST ENDSTREAMLINED W/ ONE BRAZING RING (PIPE) FIRST END; Nominal Overall Length: 4.690 INCHES4.690 INCHES IN. 11 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.