The Tube Assembly,metal, cataloged under National Stock Number 4710-01-569-5501, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-569-5501 |
| Primary Part Number | 2056AS0321-33 |
| Item Name | Tube Assembly,metal |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Design Form | PREBENT |
| Mating End Quantity | 2 ALL ENDS |
| Material Document and Classification | ASTM A269, GRADE T+304 ASSN STD SINGLE MATERIAL RESPONSE TUBING |
| Wall Thickness | 0.049 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.688 INCHES FIRST END IN |
| Nominal Thread Size | 0.812 INCHES SECOND END IN |
| End Connection Style | SWIVEL NUT, GASKET SEAL ALL ENDS |
| Tube Outside Diameter | 0.375 INCHES NOMINAL IN |
| Thread Class | 2B ALL ENDS |
| Material | STEEL COMP 304 AND STEEL COMP 316 TUBING |
| Thread Series Designator | UNF ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2056AS0321-33 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 4710-01-569-5501 is a Tube Assembly,metal, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-569-5501 has 1 manufacturer part number on file: 2056AS0321-33 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 2056AS0321-33: Design Form: PREBENT; Mating End Quantity: 2 ALL ENDS; Material Document and Classification: ASTM A269, GRADE T+304 ASSN STD SINGLE MATERIAL RESPONSE TUBING; Wall Thickness: 0.049 INCHES NOMINAL IN. 12 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 4710-01-569-5501 has DEMIL Code B. 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.