The Adapter,straight,flange to Boss, cataloged under National Stock Number 4730-01-171-0890, 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 The Boeing Company Div Legacy Am&m. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-171-0890 |
| Primary Part Number | 41A59000-001 |
| Item Name | Adapter,straight,flange to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 41A59000-001 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| R-TBD-515 | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
NSN 4730-01-171-0890 is a Adapter,straight,flange to Boss, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-171-0890 has 1 manufacturer part number on file: 41A59000-001 (The Boeing Company Div Legacy Am&m).
Key specifications for 41A59000-001: Special Features: CONSIST OF: TW706-32DE CAP, AN816-6-6D ADAPTER, AN929-6 CAP AND AS568-330 O-RING // USED ON: L362C2016 INTERCOOLER HEAT EXCHANGER // THIS ITEM IS USED TO: INTERFACE HEAT EXCHANGER FUEL CIRCUIT INLET AND OUTLET FLANGES WITH THE FUEL TEST STAND; End Item Identification: B-1B AIRCRAFT. 0 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 4730-01-171-0890 has DEMIL Code D. 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.