The Elbow,pipe to Tube, cataloged under National Stock Number 4730-01-538-3633, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Velvac Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-538-3633 |
| Primary Part Number | 016984 |
| Item Name | Elbow,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Velvac Inc |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 0.250 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT 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 |
NSN 4730-01-538-3633 is a Elbow,pipe to Tube, manufactured by Velvac Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-538-3633 has 2 manufacturer part numbers on file: 404422 (Crysteel Manufacturing, Inc Dba Crysteel Manufacturing Inc), 016984 (Velvac Inc).
Key specifications for 016984: Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN; Part Name Assigned by Controlling Agency: COMPRESSION MALE ELBOW 1/2 X 1/4 NPT. 5 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.