The Motor,windshield Wiper,pneumatic, cataloged under National Stock Number 2540-00-929-7199, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is Trico Products Corporation. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 2540-00-929-7199 |
| Primary Part Number | APM21-20S |
| Item Name | Motor,windshield Wiper,pneumatic |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | Trico Products Corporation |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Connection Fitting | INCLUDED |
| Mounting Hole Thread Provision | UNTHREADED |
| Connection Thread Size | 0.438-24 |
| Actuating Shaft End Connection Type | PIVOT ARM |
| Design Type | OSCILLATING ARM |
| Connection Thread Series Designator | NS |
| Mounting Hole Spacing | 5.000 IN. C TO C IN |
| Actuating Shaft Length | 0.438 INCHES NOMINAL IN |
| Mounting Method | BRACKET(S) |
| Mounting Hole Diameter | 0.219 INCHES NOMINAL IN |
| Throw Angle in Deg | 135.0 |
| Connection Thread Location | EXTERNAL |
| Actuating Shaft Largest Diameter | 0.375 INCHES NOMINAL IN |
| Connection Thread Direction | RIGHT-HAND |
| Manual Operation Facility | NOT PROVIDED |
| Control Valve | NOT PROVIDED |
| Connection Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| APM21-20S | Trico Products Corporation (USA) |
| Reference | Meaning |
|---|---|
| 266413 | 5/9 Secondary reference Sheller-Globe Corp Superior-Lima Div |
| 266413 | 3/9 Design control — primary reference Keas Superior Bus Sales Inc |
NSN 2540-00-929-7199 is a Motor,windshield Wiper,pneumatic, manufactured by Trico Products Corporation, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-00-929-7199 has 1 manufacturer part number on file: APM21-20S (Trico Products Corporation).
Key specifications for APM21-20S: Mounting Hole Quantity: 2; Connection Fitting: INCLUDED; Mounting Hole Thread Provision: UNTHREADED; Connection Thread Size: 0.438-24. 18 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.