The Tube Assembly,metal, cataloged under National Stock Number 4710-01-187-2579, 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 King Nutronics Corporation Dba King Nutronics. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-187-2579 |
| Primary Part Number | 3657-39-3 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | King Nutronics Corporation Dba King Nutronics |
| Status | ACTIVE |
| Seat Angle in Deg | 12.0 SECOND END |
| Seat Angle in Deg | 33.0 FIRST END |
| Design Form | STRAIGHT |
| Mating End Quantity | 1 SECOND END |
| Mating End Quantity | 1 FIRST END |
| Wall Thickness | 0.065 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| End Connection Style | SWIVEL NUT WITH LOOSE OR INTEGRAL CLINCH SLEEVE SECOND END |
| End Connection Style | SWIVEL NUT WITH COMPRESSION SLEEVE FIRST END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL IN |
| Thread Class | 3B SECOND END |
| Thread Class | 3B FIRST END |
| Material | STEEL CORROSION RESISTING SECOND END |
| Material | STEEL CORROSION RESISTING FIRST END |
| Material | STEEL CORROSION RESISTING TUBING |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| 3657-39-3 PRIMARY | King Nutronics Corporation Dba King Nutronics (USA) |
| Reference | Meaning |
|---|---|
| 3657-39 | D/9 Drawing number reference only King Nutronics Corporation Dba King Nutronics |
NSN 4710-01-187-2579 is a Tube Assembly,metal, manufactured by King Nutronics Corporation Dba King Nutronics, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-187-2579 has 1 manufacturer part number on file: 3657-39-3 (King Nutronics Corporation Dba King Nutronics).
2 possible matches (shared part number, not a government interchangeability claim): 4710-01-187-2580, 4710-01-187-2581. Verify interchangeability with system specifications before substitution.
Key specifications for 3657-39-3: Seat Angle in Deg: 12.0 SECOND END; Seat Angle in Deg: 33.0 FIRST END; Design Form: STRAIGHT; Mating End Quantity: 1 SECOND END. 20 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.