The Tube Assembly,metal, cataloged under National Stock Number 4710-00-342-1587, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-00-342-1587 |
| Primary Part Number | 4029278 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Seat Angle in Deg | 37.0 FIRST END |
| Seat Angle in Deg | 37.0 SECOND END |
| Design Form | PREBENT |
| Mating End Quantity | 1 SECOND END |
| Mating End Quantity | 1 FIRST END |
| Thread Pitch Diameters | +0.405 TO 0.409 INCHES FIRST END IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| End Connection Style | FLARED SECOND END |
| End Connection Style | SWIVEL NUT, FLARE FIRST END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL IN |
| Thread Class | 3B FIRST END |
| Material | STEEL TUBING |
| Material | STEEL COMP 347 FIRST END |
| End Connection Spec/std | MIL,MS9198,PART NO. MS9198-04,MS9484,PART NO. MS9483-04,AND ST2004,ST2004-04 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4029278 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 4029278 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 4029278 | 5/9 Secondary reference Aero Tube Technologies, Llc Dba Tube Bends |
| 4029278 | 5/9 Secondary reference Smiths Tubular Systems-Laconia, Inc. Div Lewis & Saunders |
NSN 4710-00-342-1587 is a Tube Assembly,metal, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-00-342-1587 has 1 manufacturer part number on file: 4029278 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 4029278: Seat Angle in Deg: 37.0 FIRST END; Seat Angle in Deg: 37.0 SECOND END; Design Form: PREBENT; Mating End Quantity: 1 SECOND END. 15 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.
NSN 4710-00-342-1587 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.