The Cap,tube, cataloged under National Stock Number 4730-00-174-5992, 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9 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-174-5992 |
| Item Name | Cap,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | FLARE |
| Tube Outside Diameter for Which Designed | 1.625 INCHES NOMINAL IN |
| Style Designator | CAP |
| Thread Direction | RIGHT-HAND INTERNAL |
| Nominal Thread Size | 1.750 INCHES INTERNAL IN |
| Thread Class | 3B INTERNAL |
| Thread Quantity Per Inch | 12 INTERNAL |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UN INTERNAL |
| 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 |
|---|---|
| 3079-34PCA3ALT1 | 5/9 Secondary reference U.S. Government activity |
| SSN575-S2100-1443113 | D/9 Drawing number reference only U.S. Government activity |
| 564-2100-736765PCA3 | 5/9 Secondary reference Naval Sea Systems Command |
| 3779-30PC11 | 5/9 Secondary reference U.S. Government activity |
| 3779-30PC11 | 5/9 Secondary reference U.S. Government activity |
| 1443113PC11 | 3/2 Design control — primary reference U.S. Government activity |
| K1-2100-1000349PCA3 | 5/9 Secondary reference U.S. Government activity |
| 564-2100-736765PCA3 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-174-5992 is a Cap,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-174-5992: Connection Style: FLARE; Tube Outside Diameter for Which Designed: 1.625 INCHES NOMINAL IN; Style Designator: CAP; Thread Direction: RIGHT-HAND INTERNAL. 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.