The Tube Assembly,metal, cataloged under National Stock Number 4710-01-320-8554, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4710-01-320-8554 |
| Primary Part Number | 65307-08056-083 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Design Form | PREBENT |
| Mating End Quantity | 2 SINGLE END |
| Bolt Hole Diameter | 0.276 INCHES NOMINAL SECOND END IN |
| 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 | FLARE FIRST END |
| End Connection Style | RECESSED SECOND END |
| Tube Outside Diameter | 1.250 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 SECOND END |
| Thread Class | 3A FIRST END A |
| Material | ALUMINUM ALLOY TUBING |
| Material | ALUMINUM ALLOY SINGLE END |
| Thread Series Designator | UN FIRST END |
| 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 |
|---|---|
| 65307-08056-083 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 65307-08056 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 4710-01-320-8554 is a Tube Assembly,metal, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-320-8554 has 1 manufacturer part number on file: 65307-08056-083 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
1 possible match (shared part number, not a government interchangeability claim): 4710-01-320-8555. Verify interchangeability with system specifications before substitution.
Key specifications for 65307-08056-083: Design Form: PREBENT; Mating End Quantity: 2 SINGLE END; Bolt Hole Diameter: 0.276 INCHES NOMINAL SECOND END IN; Wall Thickness: 0.049 INCHES NOMINAL IN. 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.
NSN 4710-01-320-8554 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.