PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0337-00-0-1-01-004Reducer,hose,fire Fighting

Akron Brass Company · NSN 4210-01-104-8531 · FSC 4210 · No Item Name Available
Verified by PartsTable
NSN 4210-01-104-8531 — this item is cataloged by the U.S. Government under National Stock Number 4210-01-104-8531. Primary manufacturer part number: 0337-00-0-1-01-004.
Features
  • Reducer,hose,fire Fighting — FSC 4210
  • Connection Type: THREADED INTERNAL HOSE FIRST END
  • Reducer Type: CONCENTRIC
  • Connection Style: GASKET SEAL (HOSE) FIRST END
  • Thread Quantity Per Inch: 9 SECOND END
  • Thread Series Designator: NH SECOND END
  • Connection Style: PLAIN (HOSE) SECOND END
  • Nominal Thread Size: 2.500 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Reducer,hose,fire Fighting, cataloged under National Stock Number 4210-01-104-8531, 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 Akron Brass Company. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4210-01-104-8531
Primary Part Number0337-00-0-1-01-004
Item NameReducer,hose,fire Fighting
FSC / FSG4210 / 42 — No Item Name Available
ManufacturerAkron Brass Company
StatusACTIVE
Connection TypeTHREADED INTERNAL HOSE FIRST END
Reducer TypeCONCENTRIC
Connection StyleGASKET SEAL (HOSE) FIRST END
Thread Quantity Per Inch9 SECOND END
Thread Series DesignatorNH SECOND END
Connection StylePLAIN (HOSE) SECOND END
Nominal Thread Size2.500 INCHES FIRST END IN
Nominal Thread Size1.500 INCHES SECOND END IN
Thread Quantity Per Inch7-1/2 FIRST END
Specification/standard Data81349-MIL-C-52404 GOVERNMENT SPECIFICATION
Connection TypeTHREADED EXTERNAL HOSE SECOND END
Nondefinitive Spec/std DataXV TYPE AND C CLASS
MaterialCOPPER ALLOY OVERALL
Thread Series DesignatorNH FIRST END
Nominal Overall Length2.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4210-00-143-435313218E0470-25 INTERCHANGEABLE
Reducer,hose,fire Fighting
Cecom Lr Center
4210-00-209-502313218E0479-3 INTERCHANGEABLE
Adapter,straight,pipe to Hose,fi
Cecom Lr Center
4210-00-255-023413218E0469-9 INTERCHANGEABLE
Siamese Connection,fire Hose
Service Brass and Aluminum Foundry Co, Inc. Dba Service Brass Fittings
4210-00-262-921113218E0473-2 INTERCHANGEABLE
Nipple,hose,fire Fighting
Cecom Lr Center
4210-00-288-882713218E0473-3 INTERCHANGEABLE
Coupling Assembly,hose,fire Figh
Cecom Lr Center
4730-00-541-6554 INTERCHANGEABLE
Adapter,straight,pipe to Hose
Cross-Reference Index
Part NumberManufacturer
13218E0470-26 Cecom Lr Center (USA)
A-327-2-1/2X1-1/2 Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company (USA)
337-2-1/2X1-1/2 Akron Brass Company (USA)
MIL-C-52404 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-52404 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
0337-00-0-1-01-004 PRIMARY Akron Brass Company (USA)
ME-118-A Tld Wollard Llc (USA)
13218E0470 Cecom Lr Center (USA)
Related Parts
4210-00-143-4353INTERCHANGEABLE
REDUCER,HOSE,FIRE FIGHTING
13218E0470-25
4210-00-209-5023INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE,FI
13218E0479-3
4210-00-255-0234INTERCHANGEABLE
SIAMESE CONNECTION,FIRE HOSE
13218E0469-9
4210-00-262-9211INTERCHANGEABLE
NIPPLE,HOSE,FIRE FIGHTING
13218E0473-2
4210-00-288-8827INTERCHANGEABLE
COUPLING ASSEMBLY,HOSE,FIRE FIGH
13218E0473-3
4730-00-541-6554INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE

Frequently Asked Questions

What is NSN 4210-01-104-8531?

NSN 4210-01-104-8531 is a Reducer,hose,fire Fighting, manufactured by Akron Brass Company, classified under FSC 4210 (No Item Name Available). Status: active.

What are the part numbers for NSN 4210-01-104-8531?

NSN 4210-01-104-8531 has 8 cross-referenced part numbers: 13218E0470-26 (Cecom Lr Center), A-327-2-1/2X1-1/2 (Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company), 337-2-1/2X1-1/2 (Akron Brass Company), MIL-C-52404 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-52404 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 4210-01-104-8531?

There are 6 known substitutes for 4210-01-104-8531: 4210-00-143-4353, 4210-00-209-5023, 4210-00-255-0234 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0337-00-0-1-01-004?

Key specifications for 0337-00-0-1-01-004: Connection Type: THREADED INTERNAL HOSE FIRST END; Reducer Type: CONCENTRIC; Connection Style: GASKET SEAL (HOSE) FIRST END; Thread Quantity Per Inch: 9 SECOND END. 15 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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