The Tee,tube to Boss, cataloged under National Stock Number 4730-01-349-7775, 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 Caterpillar Inc Div Caterpillar Defense. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Tee,tube to Boss |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Navantia - Propulsion Y Energia Motores - Cartagena (CAGE 409BB); Navantia Sa Sme. Div Navantia Hq (CAGE 0141B) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-349-7775 |
| Primary Part Number | 8T0163 |
| Item Name | Tee,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| 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 |
|---|---|
| 9Y6637 1T 35 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 8T0163 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 8T-0163 | Navantia - Propulsion Y Energia Motores - Cartagena (ESP) |
| 8T163 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 8T-0163 | Navantia Sa Sme. Div Navantia Hq (ESP) |
NSN 4730-01-349-7775 is a Tee,tube to Boss, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-349-7775 has 5 manufacturer part numbers on file: 9Y6637 1T 35 (Caterpillar Inc Div Caterpillar Defense), 8T0163 (Caterpillar Inc Div Caterpillar Defense), 8T-0163 (Navantia - Propulsion Y Energia Motores - Cartagena), 8T163 (Caterpillar Inc Div Caterpillar Defense), 8T-0163 (Navantia Sa Sme. Div Navantia Hq).
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.