The Drain Mast, cataloged under National Stock Number 1680-01-688-6220, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Boeing Distribution, Inc.. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1680-01-688-6220 |
| Primary Part Number | 346A5503-4 |
| Item Name | Drain Mast |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Boeing Distribution, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | V |
| Part Number | Manufacturer |
|---|---|
| 346A5503-4 | Boeing Distribution, Inc. (USA) |
| 346A5503-4 | Department of Navy Naval Inventory Control Point (USA) |
| Reference | Meaning |
|---|---|
| 346A5503-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-688-6220 is a Drain Mast, manufactured by Boeing Distribution, Inc., classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-688-6220 has 2 manufacturer part numbers on file: 346A5503-4 (Boeing Distribution, Inc.), 346A5503-4 (Department of Navy Naval Inventory Control Point).
Key specifications for 346A5503-4: Part Name Assigned by Controlling Agency: DRAIN MAST ASSY; End Item Identification: P-8A POSEIDON AIRCRAFT A. 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 1680-01-688-6220 has DEMIL Code Q. 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.