PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B400-6-1Reducer,tube

Swagelok Co Dba Use CAGE Code 3t9t9 for Cataloging · NSN 4730-00-507-7297 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-507-7297 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-507-7297. Primary manufacturer part number: B400-6-1.
Features
  • Reducer,tube — FSC 4730
  • Material: COPPER ALLOY OVERALL
  • Nominal Overall Length: 0.906 INCHES IN
  • Nominal Outside Diameter Tube Accommodated: 0.062 INCHES SECOND END IN
  • Nominal Thread Size: 0.190 INCHES SECOND END IN
  • Connection Style: FLARELESS (TUBE) SECOND END
  • Reducer Type: CONCENTRIC
  • Thread Class: 2A SECOND END A
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-00-507-7297, 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 Dba Use CAGE Code 3t9t9 for Cataloging. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-507-7297
Primary Part NumberB400-6-1
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSwagelok Co Dba Use CAGE Code 3t9t9 for Cataloging
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Nominal Overall Length0.906 INCHES IN
Nominal Outside Diameter Tube Accommodated0.062 INCHES SECOND END IN
Nominal Thread Size0.190 INCHES SECOND END IN
Connection StyleFLARELESS (TUBE) SECOND END
Reducer TypeCONCENTRIC
Thread Class2A SECOND END A
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Furnished Items and Quantity2 TUBE COUPLING NUT W/SLEEVE
Connection StyleFLARELESS (TUBE) FIRST END
Seat Angle20.0 DEGREES FIRST END
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Thread Class2A FIRST END A
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Thread Series DesignatorUNF SECOND END
Thread Series DesignatorUNF FIRST END
Nominal Thread Size0.438 INCHES FIRST END IN
Seat Angle20.0 DEGREES SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-061-6912400-61 INTERCHANGEABLE
Nipple,tube
Swagelok Co
Cross-Reference Index
Part NumberManufacturer
B400-6-1 Swagelok Co Dba Use CAGE Code 3t9t9 for Cataloging (USA)
4-1HBZ-B Parker-Hannifin Corporation Div Instrumentation Products Division (USA)
Related Parts
4730-00-061-6912INTERCHANGEABLE
NIPPLE,TUBE
400-61

Frequently Asked Questions

What is NSN 4730-00-507-7297?

NSN 4730-00-507-7297 is a Reducer,tube, manufactured by Swagelok Co Dba Use CAGE Code 3t9t9 for Cataloging, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-507-7297?

NSN 4730-00-507-7297 has 2 cross-referenced part numbers: B400-6-1 (Swagelok Co Dba Use CAGE Code 3t9t9 for Cataloging), 4-1HBZ-B (Parker-Hannifin Corporation Div Instrumentation Products Division).

What NSN replaces 4730-00-507-7297?

There is 1 known substitute for 4730-00-507-7297: 4730-00-061-6912. Verify interchangeability with system specifications before substitution.

What are the specifications of B400-6-1?

Key specifications for B400-6-1: Material: COPPER ALLOY OVERALL; Nominal Overall Length: 0.906 INCHES IN; Nominal Outside Diameter Tube Accommodated: 0.062 INCHES SECOND END IN; Nominal Thread Size: 0.190 INCHES SECOND END IN. 18 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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