The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-138-8045, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-138-8045 |
| Primary Part Number | TDA1663A |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES FIRST END |
| Measuring Method and Length | 15.240 INCHES NOMINAL OVERALL IN |
| Connection Style | PLAIN FIRST END |
| Connection Style | INVERTED FLARE SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Connection Type | INTERNALLY THREADED PIPE AND EXTERNALLY THREADED TUBE SECOND END |
| Cross-Sectional Shape Style | ROUND |
| Nominal Thread Size | 0.125 INCHES FIRST END IN |
| Nominal Thread Size | 0.125 INCHES AND 0.625 INCHES SECOND END IN |
| Thread Series Designator | NPT FIRST END |
| Thread Series Designator | NPT AND UNF 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 |
| Part Number | Manufacturer |
|---|---|
| TDA1663A PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
NSN 4720-00-138-8045 is a Hose Assembly,nonmetallic, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-138-8045 has 1 manufacturer part number on file: TDA1663A (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
Key specifications for TDA1663A: Flow Angle: 90.0 DEGREES FIRST END; Measuring Method and Length: 15.240 INCHES NOMINAL OVERALL IN; Connection Style: PLAIN FIRST END; Connection Style: INVERTED FLARE SECOND END. 11 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.