PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5100-107Reducer,hose,fire Fighting

Forest Service Specifications Promulgated by United States Forest Service Washington DC · NSN 4210-01-081-0419 · FSC 4210 · No Item Name Available
Verified by PartsTable
NSN 4210-01-081-0419 — this item is cataloged by the U.S. Government under National Stock Number 4210-01-081-0419. Primary manufacturer part number: 5100-107.
Features
  • Reducer,hose,fire Fighting — FSC 4210
  • Connection Style: PLAIN (HOSE) SECOND END
  • Nominal Thread Size: 1.500 INCHES SECOND END IN
  • Media for Which Designed: WATER SINGLE RESPONSE
  • Nominal Thread Size: 2.500 INCHES FIRST END IN
  • Connection Type: THREADED INTERNAL HOSE FIRST END
  • Connection Style: GASKET SEAL (HOSE) FIRST END
  • Thread Quantity Per Inch: 9 SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Reducer,hose,fire Fighting, cataloged under National Stock Number 4210-01-081-0419, is classified within Federal Supply Class 4210 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Forest Service Specifications Promulgated by United States Forest Service Washington DC. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4210-01-081-0419
Primary Part Number5100-107
Item NameReducer,hose,fire Fighting
FSC / FSG4210 / 42 — No Item Name Available
ManufacturerForest Service Specifications Promulgated by United States Forest Service Washington DC
StatusACTIVE
Connection StylePLAIN (HOSE) SECOND END
Nominal Thread Size1.500 INCHES SECOND END IN
Media for Which DesignedWATER SINGLE RESPONSE
Nominal Thread Size2.500 INCHES FIRST END IN
Connection TypeTHREADED INTERNAL HOSE FIRST END
Connection StyleGASKET SEAL (HOSE) FIRST END
Thread Quantity Per Inch9 SECOND END
Connection TypeTHREADED EXTERNAL HOSE SECOND END
Thread Series DesignatorNPSH FIRST END
Thread Series DesignatorNH SECOND END
MaterialALUMINUM ALLOY OVERALL
Reducer TypeCONCENTRIC
Operating Pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Overall Length1.812 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-239-1873 INTERCHANGEABLE
Gasket
5330-00-239-1875 INTERCHANGEABLE
Gasket
5330-00-239-1877 INTERCHANGEABLE
Gasket
4210-00-294-2648 INTERCHANGEABLE
Reducer,hose,fire Fighting
4210-00-975-2969 INTERCHANGEABLE
Reducer,hose,fire Fighting
4210-01-079-9283 INTERCHANGEABLE
Coupling,hose,fire Fighting
4210-01-079-9284 INTERCHANGEABLE
Coupling,hose,fire Fighting
4210-01-079-9285 INTERCHANGEABLE
Coupling,hose,fire Fighting
4210-01-079-9286 INTERCHANGEABLE
Reducer,hose,fire Fighting
4210-01-080-1457 INTERCHANGEABLE
Coupling,hose,fire Fighting
Cross-Reference Index
Part NumberManufacturer
5100-107 Forest Service Specifications Promulgated by United States Forest Service Washington DC
5100-00107 Forest Service Specifications Promulgated by United States Forest Service Washington DC
5100-190 Forest Service Specifications Promulgated by United States Forest Service Washington DC
NFES 2229 Forest Service Specifications Promulgated by United States Forest Service Washington DC
Related Parts
5330-00-239-1873INTERCHANGEABLE
GASKET
5330-00-239-1875INTERCHANGEABLE
GASKET
5330-00-239-1877INTERCHANGEABLE
GASKET
4210-00-294-2648INTERCHANGEABLE
REDUCER,HOSE,FIRE FIGHTING
4210-00-975-2969INTERCHANGEABLE
REDUCER,HOSE,FIRE FIGHTING
4210-01-079-9283INTERCHANGEABLE
COUPLING,HOSE,FIRE FIGHTING
4210-01-079-9284INTERCHANGEABLE
COUPLING,HOSE,FIRE FIGHTING
4210-01-079-9285INTERCHANGEABLE
COUPLING,HOSE,FIRE FIGHTING
4210-01-079-9286INTERCHANGEABLE
REDUCER,HOSE,FIRE FIGHTING
4210-01-080-1457INTERCHANGEABLE
COUPLING,HOSE,FIRE FIGHTING
4210-01-080-1458INTERCHANGEABLE
COUPLING,HOSE,FIRE FIGHTING
4210-01-080-1459INTERCHANGEABLE
TEE,PIPE TO HOSE,FIRE FIGHTING

Frequently Asked Questions

What is NSN 4210-01-081-0419?

NSN 4210-01-081-0419 is a Reducer,hose,fire Fighting, manufactured by Forest Service Specifications Promulgated by United States Forest Service Washington DC, classified under FSC 4210 (No Item Name Available). Status: active.

What are the part numbers for NSN 4210-01-081-0419?

NSN 4210-01-081-0419 has 4 cross-referenced part numbers: 5100-107 (Forest Service Specifications Promulgated by United States Forest Service Washington DC), 5100-00107 (Forest Service Specifications Promulgated by United States Forest Service Washington DC), 5100-190 (Forest Service Specifications Promulgated by United States Forest Service Washington DC), NFES 2229 (Forest Service Specifications Promulgated by United States Forest Service Washington DC).

What NSN replaces 4210-01-081-0419?

There are 12 known substitutes for 4210-01-081-0419: 5330-00-239-1873, 5330-00-239-1875, 5330-00-239-1877 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5100-107?

Key specifications for 5100-107: Connection Style: PLAIN (HOSE) SECOND END; Nominal Thread Size: 1.500 INCHES SECOND END IN; Media for Which Designed: WATER SINGLE RESPONSE; Nominal Thread Size: 2.500 INCHES FIRST END IN. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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