The Arm,windshield Wiper, cataloged under National Stock Number 1680-01-034-2512, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Emerson Electric Co Alco Controls Div. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1680-01-034-2512 |
| Primary Part Number | XW21749-1 |
| Item Name | Arm,windshield Wiper |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Drive Adapter Extension | NOT INCLUDED |
| Drive End Drive Shaft Mounting Hole | INCLUDED |
| Mounting Method | PIN(S) BLADE |
| Pin Mounting Hole Diameter | 0.252 INCHES NOMINAL IN |
| Mounting Position | UNIVERSAL |
| Arm Length | 21.094 INCHES NOMINAL IN |
| Locking Device Type | SERRATED CLIP W/TIGHTENING SCREW |
| Adjustability | ADJUSTABLE |
| Painted Feature | INCLUDED |
| Drive End Locking Device | INCLUDED |
| Color | BLACK |
| Drive Shaft Adapter | NOT INCLUDED |
| Drive End Mounting Type | COLLAR |
| Hole Diameter | 0.375 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2314M-93-2 | Rosemount Aerospace Inc Dba Rosemount Aerospace Inc (USA) |
| XW21749-1 PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
| Reference | Meaning |
|---|---|
| XW21749 | 5/9 Secondary reference Emerson Electric Co Alco Controls Div |
NSN 1680-01-034-2512 is a Arm,windshield Wiper, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-034-2512 has 2 manufacturer part numbers on file: 2314M-93-2 (Rosemount Aerospace Inc Dba Rosemount Aerospace Inc), XW21749-1 (Emerson Electric Co Alco Controls Div).
Key specifications for XW21749-1: Drive Adapter Extension: NOT INCLUDED; Drive End Drive Shaft Mounting Hole: INCLUDED; Mounting Method: PIN(S) BLADE; Pin Mounting Hole Diameter: 0.252 INCHES NOMINAL IN. 14 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 1680-01-034-2512 has DEMIL Code B. 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.