The Coupling,tube, cataloged under National Stock Number 4730-01-337-0027, 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 9 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-337-0027 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | SOCKET (TUBE) ALL ENDS |
| Tubing Wall Nominal Thickness for Which Designed | 0.208 INCHES ALL ENDS IN |
| Nominal Overall Length | 1.750 INCHES IN |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Style Designator | PLAIN |
| Material Document and Classification | MIL-C-15726 COMP 70/30 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 1.500 INCHES ALL ENDS IN |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 2621-092-01 PIE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2621-092-01 PIECE 89 | 3/2 Design control — primary reference U.S. Government activity |
| 300-4644231 ITEM F82 | 5/2 Secondary reference U.S. Government activity |
| 2621-092-01 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-337-0027 is a Coupling,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-337-0027: Connection Style: SOCKET (TUBE) ALL ENDS; Tubing Wall Nominal Thickness for Which Designed: 0.208 INCHES ALL ENDS IN; Nominal Overall Length: 1.750 INCHES IN; Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS. 9 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.