The Head,sprinkler,fire Protection, cataloged under National Stock Number 4210-01-415-7359, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Simplex Time Recorder Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4210-01-415-7359 |
| Primary Part Number | 77-570-1-175 |
| Item Name | Head,sprinkler,fire Protection |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Manufacturer | Simplex Time Recorder Llc |
| Status | ACTIVE |
| Opening Diameter | 0.250 INCHES NOMINAL IN |
| Head Type | SPRINKLER |
| Connection Thread Size | 1/2-14 |
| Connection Thread Series | NPT |
| Connection Thread Location | EXTERNAL |
| Media for Which Designed | WATER |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 77-570-1-175 PRIMARY | Simplex Time Recorder Llc (USA) |
| Reference | Meaning |
|---|---|
| 51-330-1-175 | 3/9 Design control — primary reference Badger Fire Protection Inc |
| 57-570-1-175 | 5/9 Secondary reference Simplex Time Recorder Llc |
NSN 4210-01-415-7359 is a Head,sprinkler,fire Protection, manufactured by Simplex Time Recorder Llc, classified under FSC 4210, Firefighting Equipment. Status: active.
NSN 4210-01-415-7359 has 1 manufacturer part number on file: 77-570-1-175 (Simplex Time Recorder Llc).
Key specifications for 77-570-1-175: Opening Diameter: 0.250 INCHES NOMINAL IN; Head Type: SPRINKLER; Connection Thread Size: 1/2-14; Connection Thread Series: NPT. 7 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.