The Coupling,tube, cataloged under National Stock Number 4730-01-390-8138, 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 Johnson Controls Ltd, York Navy Systems. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-390-8138 |
| Primary Part Number | 268L62911-M00 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Johnson Controls Ltd, York Navy Systems |
| Status | ACTIVE |
| Connection Style | GASKET SEAL (TUBE) SECOND END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Nominal Overall Length | 1.375 INCHES IN |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Style Designator | THREADED AND PLAIN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Maximum Operating Temp | 225.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A SECOND END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| 268L62911-M00 | Johnson Controls Ltd, York Navy Systems (GBR) |
| AP6U | Ssp Fittings Corp (USA) |
| 6592697 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H849-6-SS | 5/2 Secondary reference U.S. Government activity |
| 8300-6-SS | 5/9 Secondary reference Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging |
| H849-06-SS | 3/2 Design control — primary reference U.S. Government activity |
| P6U-SS | 5/9 Secondary reference Ssp Fittings Corp |
| P6U | 5/9 Secondary reference Ssp Fittings Corp |
NSN 4730-01-390-8138 is a Coupling,tube, manufactured by Johnson Controls Ltd, York Navy Systems, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-390-8138 has 3 manufacturer part numbers on file: 268L62911-M00 (Johnson Controls Ltd, York Navy Systems), AP6U (Ssp Fittings Corp), 6592697 (Naval Sea Systems Command).
Key specifications for 268L62911-M00: Connection Style: GASKET SEAL (TUBE) SECOND END; Connection Style: SOCKET (TUBE) FIRST END; Nominal Overall Length: 1.375 INCHES IN; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 14 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.