PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B2HRN1Reducer,pipe

Swagelok Co · NSN 4730-00-045-4281 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-045-4281 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-045-4281. Primary manufacturer part number: B2HRN1.
Features
  • Reducer,pipe — FSC 4730
  • Material: COPPER OVERALL
  • Nominal Pipe Size Accommodated: 0.125 INCHES FIRST END IN
  • Nominal Thread Size: 0.062 INCHES SECOND END IN
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Nominal Pipe Size Accommodated: 0.062 INCHES SECOND END IN
  • Reducer Type: CONCENTRIC
  • Nominal Overall Length: 1.000 INCHES IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Overall construction
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-00-045-4281, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Swagelok Co. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-045-4281
Primary Part NumberB2HRN1
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSwagelok Co
StatusCANCELLED
MaterialCOPPER OVERALL
Nominal Pipe Size Accommodated0.125 INCHES FIRST END IN
Nominal Thread Size0.062 INCHES SECOND END IN
Connection StylePLAIN (PIPE) ALL ENDS
Nominal Pipe Size Accommodated0.062 INCHES SECOND END IN
Reducer TypeCONCENTRIC
Nominal Overall Length1.000 INCHES IN
Operating Pressure5500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorNPT ALL ENDS
Nominal Thread Size0.125 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3110-00-155-6508 INTERCHANGEABLE
Bearing,roller,cylindrical
Cross-Reference Index
Part NumberManufacturer
2HRN1 Cajon Co (USA)
B2HRN1 PRIMARY Swagelok Co (USA)
2-1MHN-B PRIMARY Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
B2HRN1 Cajon Co (USA)
870648 Ordnance Supply Office (USA)
Related Parts
3110-00-155-6508INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL

Frequently Asked Questions

What is NSN 4730-00-045-4281?

NSN 4730-00-045-4281 is a Reducer,pipe, manufactured by Swagelok Co, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-045-4281?

NSN 4730-00-045-4281 has 5 cross-referenced part numbers: 2HRN1 (Cajon Co), B2HRN1 (Swagelok Co), 2-1MHN-B (Parker-Hannifin Corporation Div Instrumentation Products Division), B2HRN1 (Cajon Co), 870648 (Ordnance Supply Office).

What NSN replaces 4730-00-045-4281?

There is 1 known substitute for 4730-00-045-4281: 3110-00-155-6508. Verify interchangeability with system specifications before substitution.

What are the specifications of B2HRN1?

Key specifications for B2HRN1: Material: COPPER OVERALL; Nominal Pipe Size Accommodated: 0.125 INCHES FIRST END IN; Nominal Thread Size: 0.062 INCHES SECOND END IN; Connection Style: PLAIN (PIPE) ALL ENDS. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-045-4281 still in active supply?

NSN 4730-00-045-4281 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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