The Cock,drain, cataloged under National Stock Number 4820-00-412-3525, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Daimler Truck North America Llc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-412-3525 |
| Primary Part Number | BW 281924N |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Daimler Truck North America Llc |
| Status | ACTIVE |
| Flow Control Device | STEM |
| Furnished Items and Quantity | 1 ADAPTER |
| Connection Style | PLAIN, OPTIONAL END (PIPE) FIRST END |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Style Designator | ANGLE |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | ALUMINUM ALLOY BODY |
| Thread Series Designator | NPT FIRST END |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 777915C92 | Komatsu America Corp. (USA) |
| BW 281924N PRIMARY | Daimler Truck North America Llc (USA) |
| 777915C92 | Dressta North America Ltd (USA) |
| 281924N PRIMARY | Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems (USA) |
| Reference | Meaning |
|---|---|
| 777915C92 | 5/9 Secondary reference Komatsu American Intl Co |
| 25-R-0615 | 5/9 Secondary reference Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) |
| 281924 | 3/9 Design control — primary reference Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems |
| M-566838 | 5/9 Secondary reference Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) |
| 92-S-1783 | 5/9 Secondary reference Kersey / American Lafrance a Div of Figgie International Inc |
| R281924 | 5/9 Secondary reference Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems |
NSN 4820-00-412-3525 is a Cock,drain, manufactured by Daimler Truck North America Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-412-3525 has 4 manufacturer part numbers on file: 777915C92 (Komatsu America Corp.), BW 281924N (Daimler Truck North America Llc), 777915C92 (Dressta North America Ltd), 281924N (Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-006-8494, 4820-01-065-1793. Verify interchangeability with system specifications before substitution.
Key specifications for BW 281924N: Flow Control Device: STEM; Furnished Items and Quantity: 1 ADAPTER; Connection Style: PLAIN, OPTIONAL END (PIPE) FIRST END; Connection Type: THREADED INTERNAL PIPE FIRST END. 12 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.
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.