The Tube and Fittings,metallic, cataloged under National Stock Number 4710-01-255-9139, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-255-9139 |
| Primary Part Number | 5204645 |
| Item Name | Tube and Fittings,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Seat Angle in Deg | 30.0 FIRST END |
| Design Form | PREBENT |
| Mating End Quantity | 1 SECOND END |
| Mating End Quantity | 1 FIRST END |
| Material Document and Classification | QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE FIRST END |
| Wall Thickness | 0.049 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.625 INCHES FIRST END IN |
| End Connection Style | SWIVEL NUT, INVERTED FLARE FIRST END |
| Tube Outside Diameter | 1.250 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 SECOND END |
| Thread Class | 2B FIRST END |
| Material | STEEL COMP 304 OR STEEL COMP 440F OR STEEL COMP 431 OR STEEL COMP 305 OR STEEL COMP 430 OR STEEL COMP 414 OR STEEL COMP 430FSE OR STEEL COMP 440FSE OR STEEL COMP 430F OR STEEL COMP 634 OR STEEL COMP 304L OR STEEL COMP 317 OR STEEL COMP 309 OR STEEL COMP 403 OR STEEL COMP 202 OR STEEL COMP 303SE OR STEEL COMP 410 OR STEEL COMP 324 OR STEEL COMP 302 OR STEEL COMP 310 OR STEEL COMP 440B OR STEEL COMP 303 OR STEEL COMP 347 OR STEEL COMP 405 OR STEEL COMP 440C OR STEEL COMP 420 OR STEEL COMP 316L OR STEEL COMP 322 OR STEEL COMP 321 OR STEEL COMP 416SE OR STEEL COMP 316 OR STEEL COMP 440A OR STEEL COMP 633 OR STEEL COMP 416 OR STEEL COMP 446 FIRST END A |
| Thread Series Designator | UN 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 |
NSN 4710-01-255-9139 is a Tube and Fittings,metallic, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-255-9139 has 3 manufacturer part numbers on file: 5204645 (Raytheon Company), 5204645 (Naval Sea Systems Command), 5204645 (Raytheon Company Dba Raytheon Co).
Key specifications for 5204645: Seat Angle in Deg: 30.0 FIRST END; Design Form: PREBENT; Mating End Quantity: 1 SECOND END; Mating End Quantity: 1 FIRST END. 14 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.