The Head,sprinkler,fire Protection, cataloged under National Stock Number 4210-01-723-0621, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Bird-Johnson Propeller Company, Llc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Head,sprinkler,fire Protection |
| FSC / FSG | 4210 — Firefighting Equipment (FSG 42) |
| Manufacturers | Bird-Johnson Propeller Company, Llc (CAGE 07309); Kidde-Fenwal, Llc (CAGE 0KDP7) |
| Parameter | Value |
|---|---|
| NSN | 4210-01-723-0621 |
| Primary Part Number | NMM003900-1100 |
| Item Name | Head,sprinkler,fire Protection |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Manufacturer | Bird-Johnson Propeller Company, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| NMM003900-1100 PRIMARY | Bird-Johnson Propeller Company, Llc (USA) |
| 86-210181-100 | Kidde-Fenwal, Llc (USA) |
| Reference | Meaning |
|---|---|
| NMM110800 FIND NO 4 | C/1 Advisory reference — outside the item-of-supply concept Bird-Johnson Propeller Company, Llc |
| NMM110800 | D/9 Drawing number reference only Bird-Johnson Propeller Company, Llc |
NSN 4210-01-723-0621 is a Head,sprinkler,fire Protection, manufactured by Bird-Johnson Propeller Company, Llc, classified under FSC 4210, Firefighting Equipment. Status: active.
NSN 4210-01-723-0621 has 2 manufacturer part numbers on file: NMM003900-1100 (Bird-Johnson Propeller Company, Llc), 86-210181-100 (Kidde-Fenwal, Llc).
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.