The Tee,tube, cataloged under National Stock Number 4730-01-509-0410, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Mcmaster-Carr Supply Co. 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 | 4730-01-509-0410 |
| Primary Part Number | 5520K81 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Connection Style | SOCKET (TUBE) ALL ENDS |
| Tubing Wall Nominal Thickness for Which Designed | 0.033 INCHES FIRST END IN |
| Tubing Wall Nominal Thickness for Which Designed | 0.033 INCHES SECOND END IN |
| Tubing Wall Nominal Thickness for Which Designed | 0.029 INCHES THIRD END IN |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES THIRD END IN |
| Nominal Outside Diameter Tube Accommodated | 0.875 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.875 INCHES SECOND END IN |
| Leg Length | 1.110 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.110 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.980 INCHES NOMINAL THIRD END IN |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 5520K81 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 4730-01-509-0410 is a Tee,tube, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-509-0410 has 1 manufacturer part number on file: 5520K81 (Mcmaster-Carr Supply Co).
Key specifications for 5520K81: Connection Style: SOCKET (TUBE) ALL ENDS; Tubing Wall Nominal Thickness for Which Designed: 0.033 INCHES FIRST END IN; Tubing Wall Nominal Thickness for Which Designed: 0.033 INCHES SECOND END IN; Tubing Wall Nominal Thickness for Which Designed: 0.029 INCHES THIRD END 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.
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.