The Tee,tube to Boss, cataloged under National Stock Number 4730-01-170-7860, 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 Pall Aeropower Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-170-7860 |
| Primary Part Number | 21200-4-17 |
| Item Name | Tee,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Pall Aeropower Corporation |
| Status | ACTIVE |
| Leg Length | 1.578 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.891 INCHES NOMINAL SECOND END IN |
| Leg Length | 0.953 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Material | STEEL COMP 304 OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| 21200-4-17 PRIMARY | Pall Aeropower Corporation (USA) |
| Reference | Meaning |
|---|---|
| 21200-4-17 | 5/9 Secondary reference Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| 10108854 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 337-541-9225 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 337-541-9225 | 5/9 Secondary reference Be Aerospace Consumables Management Dba Aerospace Services Div Consumables Solutions |
| 337-541-9225 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-170-7860 is a Tee,tube to Boss, manufactured by Pall Aeropower Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-170-7860 has 1 manufacturer part number on file: 21200-4-17 (Pall Aeropower Corporation).
Key specifications for 21200-4-17: Leg Length: 1.578 INCHES NOMINAL FIRST END IN; Leg Length: 0.891 INCHES NOMINAL SECOND END IN; Leg Length: 0.953 INCHES NOMINAL THIRD END IN; Nominal Thread Size: 0.438 INCHES FIRST END IN. 7 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.