The Head,sprinkler,fire Protection, cataloged under National Stock Number 4210-01-642-1997, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Kidde-Fenwal, Llc. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4210-01-642-1997 |
| Primary Part Number | 86-210361-410 |
| Item Name | Head,sprinkler,fire Protection |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Manufacturer | Kidde-Fenwal, Llc |
| Status | ACTIVE |
| Opening Diameter | 0.6406 INCHES NOMINAL IN |
| Head Type | SPRINKLER |
| Connection Thread Size | 1-1/2 INCH 11.5 NPT THREAD IN |
| Opening Quantity | 4 |
| Connection Thread Series | NPT |
| Connection Thread Location | EXTERNAL |
| Media for Which Designed | VAPORIZING LIQUID |
| Material | STEEL CORROSION RESISTING |
| Spray Angle Pattern | 360.0 DEGREES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 86-210361-410 PRIMARY | Kidde-Fenwal, Llc (USA) |
| 555-8204566 LINE NO. 125 | Naval Sea Systems Command (USA) |
NSN 4210-01-642-1997 is a Head,sprinkler,fire Protection, manufactured by Kidde-Fenwal, Llc, classified under FSC 4210, Firefighting Equipment. Status: active.
NSN 4210-01-642-1997 has 2 manufacturer part numbers on file: 86-210361-410 (Kidde-Fenwal, Llc), 555-8204566 LINE NO. 125 (Naval Sea Systems Command).
Key specifications for 86-210361-410: Opening Diameter: 0.6406 INCHES NOMINAL IN; Head Type: SPRINKLER; Connection Thread Size: 1-1/2 INCH 11.5 NPT THREAD IN; Opening Quantity: 4. 9 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.