The Tailpiece,union, cataloged under National Stock Number 4730-01-157-3694, 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 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-157-3694 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| End Connection Type | THREADED |
| Seat Type | RECESSED FACE |
| Thread Direction | RIGHT-HAND |
| Thread Size | 0.562-18 |
| Screw Thread Series Designator | UNF |
| Screw Thread Location | EXTERNAL |
| Material | STEEL COMP 316L |
| 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 |
|---|---|
| 7269-2 | D/9 Drawing number reference only Air Dry Co of America, Llc |
| 7269-2-316 | 3/2 Design control — primary reference U.S. Government activity |
| 7269-2-316 | 3/9 Design control — primary reference Air Dry Co of America, Llc |
NSN 4730-01-157-3694 is a Tailpiece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-157-3694: End Connection Type: THREADED; Overall Length: 1.562 INCHES NOMINAL IN; Seat Type: RECESSED FACE; Thread Direction: RIGHT-HAND. 7 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.