The Tube Assembly,metal, cataloged under National Stock Number 4710-00-654-9021, 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 The W.w. Williams Company, Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-00-654-9021 |
| Primary Part Number | 16100411 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | The W.w. Williams Company, Llc |
| Status | ACTIVE |
| Seat Angle in Deg | 12.0 SECOND END12.0 SECOND END |
| Seat Angle in Deg | 30.0 FIRST END30.0 FIRST END |
| Design Form | PREBENTPREBENT |
| Mating End Quantity | 1 FIRST END1 FIRST END |
| Mating End Quantity | 1 SECOND END1 SECOND END |
| Wall Thickness | 0.083 INCHES NOMINAL0.083 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.500 INCHES FIRST END0.500 INCHES FIRST END IN |
| Nominal Thread Size | 0.625 INCHES SECOND END0.625 INCHES SECOND END IN |
| End Connection Style | SWIVEL NUT WITH COMPRESSION SLEEVE SECOND ENDSWIVEL NUT WITH COMPRESSION SLEEVE SECOND END |
| End Connection Style | SWIVEL NUT, INVERTED FLARE FIRST ENDSWIVEL NUT, INVERTED FLARE FIRST END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Thread Class | 2B ALL ENDS2B ALL ENDS |
| Material | STEEL ALL ENDSSTEEL ALL ENDS |
| Material | STEEL TUBINGSTEEL TUBING |
| Thread Series Designator | UNF FIRST ENDUNF FIRST END |
| Thread Series Designator | UN SECOND ENDUN 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 |
|---|---|
| 16100411 PRIMARY | The W.w. Williams Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 16100411 | 5/9 Secondary reference U.S. Government activity |
| A421ADH2 | 5/9 Secondary reference U.S. Government activity |
| 421ADHCC | 5/9 Secondary reference U.S. Government activity |
NSN 4710-00-654-9021 is a Tube Assembly,metal, manufactured by The W.w. Williams Company, Llc, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-654-9021 has 1 manufacturer part number on file: 16100411 (The W.w. Williams Company, Llc).
1 possible match (shared part number, not a government interchangeability claim): 6610-00-854-5034. Verify interchangeability with system specifications before substitution.
Key specifications for 16100411: Seat Angle in Deg: 12.0 SECOND END12.0 SECOND END; Seat Angle in Deg: 30.0 FIRST END30.0 FIRST END; Design Form: PREBENTPREBENT; Mating End Quantity: 1 FIRST END1 FIRST END. 17 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.