The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-563-8090, 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 Earls Performance Products. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-563-8090 |
| Primary Part Number | 991946ERL |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Earls Performance Products |
| Status | ACTIVE |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Seat Angle | 45.0 DEGREES SECOND END |
| Surface Treatment | ANODIZE OVERALL |
| Thread Quantity Per Inch | 6 FIRST END |
| Thread Quantity Per Inch | 20 SECOND END |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | ANPT FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 991946ERL PRIMARY | Earls Performance Products (USA) |
| Reference | Meaning |
|---|---|
| 991946E | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| 491955 | 5/9 Secondary reference F-K Bearings, Inc. Dba Fk Bearing Co-5 |
NSN 4730-01-563-8090 is a Adapter,straight,pipe to Tube, manufactured by Earls Performance Products, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-563-8090 has 1 manufacturer part number on file: 991946ERL (Earls Performance Products).
Key specifications for 991946ERL: Connection Type: THREADED EXTERNAL TUBE SECOND END; Connection Type: THREADED EXTERNAL PIPE FIRST END; Nominal Thread Size: 0.500 INCHES SECOND END IN; Seat Angle: 45.0 DEGREES SECOND END. 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.