The Union,tube, cataloged under National Stock Number 4730-01-392-8689, 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 Cpv Ltd. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-392-8689 |
| Primary Part Number | H849-4-SS |
| Item Name | Union,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Cpv Ltd |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Nominal Overall Length | 1.000 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | SCREWED |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 225.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| H849-4-SS | Cpv Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 14741000 ITEM 185 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| H849-4-SS | 5/2 Secondary reference U.S. Government activity |
| 14741000 ITEM 185 | 5/9 Secondary reference U.S. Government activity |
| 14741000 ITEM 185 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-392-8689 is a Union,tube, manufactured by Cpv Ltd, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-392-8689 has 1 manufacturer part number on file: H849-4-SS (Cpv Ltd).
Key specifications for H849-4-SS: Connection Style: PLAIN (TUBE) ALL ENDS; Nominal Overall Length: 1.000 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Style Designator: SCREWED. 8 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.