The Nipple,tube, cataloged under National Stock Number 4730-00-404-9638, 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15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-404-9638 |
| Item Name | Nipple,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 SHORT COUPLING NUT WITH SLEEVE AND 1 TUBE SUPPORT |
| Connection Style | COMPRESSION (TUBE) FIRST END |
| Connection Style | FLARELESS (TUBE) SECOND END |
| Seat Nominal Radius | 0.620 INCHES FIRST END IN |
| Nominal Overall Length | 1.406 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Style Designator | CENTER WRENCHING FACILITY |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Seat Angle | 12.0 DEGREES SECOND END |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 24 ALL ENDS |
| Material | COPPER ALLOY 360 OVERALL |
| Thread Series Designator | UNEF FIRST END |
| Thread Series Designator | UNS 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 |
| Reference | Meaning |
|---|---|
| 262-PC-06 | 5/9 Secondary reference Imperial |
| 62PCA-6 | 3/2 Design control — primary reference U.S. Government activity |
| 262PC3-8 | 5/9 Secondary reference Imperial |
NSN 4730-00-404-9638 is a Nipple,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-404-9638: Furnished Items and Quantity: 2 SHORT COUPLING NUT WITH SLEEVE AND 1 TUBE SUPPORT; Connection Style: COMPRESSION (TUBE) FIRST END; Connection Style: FLARELESS (TUBE) SECOND END; Seat Nominal Radius: 0.620 INCHES FIRST END IN. 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.