The Union,pipe, cataloged under National Stock Number 4730-01-495-1930, 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 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-495-1930 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.3750 INCHES FIRST END IN |
| Connection Style | INVERTED FLARE (PIPE) FIRST END |
| Coupling Flange Shape | ROUND |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Thread Pitch Diameters | +1.2250 TO 1.2304 INCHES FIRST END IN |
| Seat Type | BEVELED |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Seat Angle | 45.0 DEGREES FIRST END |
| Specification/standard Data | 81349-MIL-F-1183/10A GOVERNMENT SPECIFICATION A |
| Nondefinitive Spec/std Data | 4 FIGURE |
| Material | COPPER ALLOY OVERALL |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| MIL-DTL-1183/10 | 4/1 Identification reference U.S. Government activity |
| M1183/10A | 5/9 Secondary reference U.S. Government activity |
| M1183/10-31N1 | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-01-495-1930 is a Union,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-495-1930: Nominal Pipe Size Accommodated: 0.3750 INCHES FIRST END IN; Connection Style: INVERTED FLARE (PIPE) FIRST END; Coupling Flange Shape: ROUND; Connection Type: THREADED EXTERNAL PIPE FIRST END. 12 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.