The Tailpiece,union, cataloged under National Stock Number 4730-01-200-4492, 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7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-200-4492 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Union Outside Diameter | 1.625 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN |
| Nominal Pipe Size Designation | 0.500 INCHES IN |
| End Connection Type | WELDED |
| Criticality Code Justification | ZZZY |
| Seat Type | RECESSED FACE |
| Material | STEEL COMP 304 |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 4690477PTF-9(SPCLN) | 5/1 Secondary reference U.S. Government activity |
| 4690477, ITEM F-9 | 3/1 Design control — primary reference U.S. Government activity |
| 845-4690477ITEMF9 | 5/1 Secondary reference U.S. Government activity |
NSN 4730-01-200-4492 is a Tailpiece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-200-4492: Union Outside Diameter: 1.625 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN; Nominal Pipe Size Designation: 0.500 INCHES IN; End Connection Type: WELDED; Criticality Code Justification: ZZZY. 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.
NSN 4730-01-200-4492 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.