The Mast,heater Drain, cataloged under National Stock Number 1680-01-390-2533, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-390-2533 |
| Item Name | Mast,heater Drain |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Status | ACTIVE |
| Fragility Factor | MODERATELY DELICATE |
| Special Handling Feature | FRAGILE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 17B1B2651-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| 112190-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-390-2533 is a Mast,heater Drain, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
Key specifications for 1680-01-390-2533: Fragility Factor: MODERATELY DELICATE; Special Features: MAST, HEATER DRAIN; End Item Identification: AIRCRAFT C-17; Special Handling Feature: FRAGILE. 2 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 1680-01-390-2533 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.