The Tube Assembly,metal, cataloged under National Stock Number 4710-00-075-4890, 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 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4710-00-075-4890 |
| Primary Part Number | 487954 |
| 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 | +0.509 TO 0.514 INCHES FIRST END IN |
| Thread Pitch Diameters | +0.526 TO 0.532 INCHES SECOND END IN |
| End Connection Style | SWIVEL NUT, FLARED SECOND END |
| End Connection Style | FLARED FIRST END |
| Tube Outside Diameter | 0.375 INCHES NOMINAL IN |
| Thread Class | 2A FIRST END A |
| Thread Class | 3B SECOND END |
| Material | STEEL CORROSION RESISTING SECOND END |
| Material | STEEL CORROSION RESISTING FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 487954 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 487954 | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 487954 | 5/9 Secondary reference E.a. Patten Co Llc |
| 487954 | 5/9 Secondary reference Smiths Tubular Systems-Laconia, Inc. Div Lewis & Saunders |
| 487954 | 5/9 Secondary reference Kreisler Industrial Corporation |
| 487954 | 5/9 Secondary reference Aero Tube Technologies, Llc Dba Tube Bends |
| 487954 | 5/9 Secondary reference U.S. Government activity |
NSN 4710-00-075-4890 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 4710-00-075-4890 has 2 manufacturer part numbers on file: 487954 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 487954 (Rtx Corporation Div Pratt & Whitney).
1 possible match (shared part number, not a government interchangeability claim): 1680-00-492-0740. Verify interchangeability with system specifications before substitution.
Key specifications for 487954: 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. 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.