The Reducer,hose,fire Fighting, cataloged under National Stock Number 4210-00-288-7735, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4210-00-288-7735 |
| Primary Part Number | 319 4.5 X 2.5 |
| Item Name | Reducer,hose,fire Fighting |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Manufacturer | Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company |
| Status | ACTIVE |
| FSC Application Data | FIRE EXTINGUISHERS |
| Connection Style | SWIVEL NUT, GASKET SEAL (HOSE) SECOND END |
| Connection Style | GASKET SEAL (HOSE) FIRST END |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 4.500 INCHES FIRST END IN |
| Nominal Thread Size | 2.500 INCHES SECOND END IN |
| Media for Which Designed | WATER SINGLE RESPONSE |
| Thread Quantity Per Inch | 7-1/2 SECOND END |
| Thread Quantity Per Inch | 4 FIRST END |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NH SECOND END |
| Thread Series Designator | NH FIRST END |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| 319 4.5 X 2.5 PRIMARY | Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company (USA) |
| Reference | Meaning |
|---|---|
| MILC52404 | 5/9 Secondary reference U.S. Government activity |
| 396 - 4.5 X 2.5 | 5/9 Secondary reference Moon American Inc |
NSN 4210-00-288-7735 is a Reducer,hose,fire Fighting, manufactured by Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company, classified under FSC 4210, Firefighting Equipment. Status: active.
NSN 4210-00-288-7735 has 1 manufacturer part number on file: 319 4.5 X 2.5 (Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company).
Key specifications for 319 4.5 X 2.5: FSC Application Data: FIRE EXTINGUISHERS; Connection Style: SWIVEL NUT, GASKET SEAL (HOSE) SECOND END; Connection Style: GASKET SEAL (HOSE) FIRST END; Operating Pressure: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 13 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.