PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A4826Reducer,tube

Mueller Brass Co. · NSN 4730-00-529-5648 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-529-5648 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-529-5648. Primary manufacturer part number: A4826.
Features
  • Reducer,tube — FSC 4730
  • Material: COPPER ALLOY OVERALL
  • Nominal Thread Size: 0.875 INCHES SECOND END IN
  • Thread Series Designator: UNS FIRST END
  • Seat Angle: 45.0 DEGREES SECOND END
  • Seat Angle: 45.0 DEGREES FIRST END
  • Connection Style: FLARED (TUBE) SECOND END
  • Connection Style: FLARED (TUBE) FIRST END
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 4730-00-529-5648, 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 Mueller Brass Co.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-529-5648
Primary Part NumberA4826
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMueller Brass Co.
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Nominal Thread Size0.875 INCHES SECOND END IN
Thread Series DesignatorUNS FIRST END
Seat Angle45.0 DEGREES SECOND END
Seat Angle45.0 DEGREES FIRST END
Connection StyleFLARED (TUBE) SECOND END
Connection StyleFLARED (TUBE) FIRST END
Nominal Thread Size1.062 INCHES FIRST END IN
Thread Class2B FIRST END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Thread Quantity Per Inch14 FIRST END
Nominal Outside Diameter Tube Accommodated0.625 INCHES SECOND END IN
Reducer TypeCONCENTRIC
Thread Series DesignatorUNF SECOND END
Nominal Outside Diameter Tube Accommodated0.750 INCHES FIRST END IN
Nominal Overall Length1.406 INCHES IN
Thread Class2A SECOND END A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3655-00-304-7479 INTERCHANGEABLE
Disk,needle Valve
4420-00-360-22308508775 INTERCHANGEABLE
Cooler,fluid,industrial
Niagara Cooler, Inc.
5305-01-013-82769-480026 INTERCHANGEABLE
Screw,machine
Unison Industries Llc
6515-01-557-9029A4826 INTERCHANGEABLE
Scissors,uterine,hysteroscopic
Olympus America Inc
Cross-Reference Index
Part NumberManufacturer
A4826 PRIMARY Mueller Brass Co. (USA)
Related Parts
3655-00-304-7479INTERCHANGEABLE
DISK,NEEDLE VALVE
4420-00-360-2230INTERCHANGEABLE
COOLER,FLUID,INDUSTRIAL
8508775
5305-01-013-8276INTERCHANGEABLE
SCREW,MACHINE
9-480026
6515-01-557-9029INTERCHANGEABLE
SCISSORS,UTERINE,HYSTEROSCOPIC
A4826

Frequently Asked Questions

What is NSN 4730-00-529-5648?

NSN 4730-00-529-5648 is a Reducer,tube, manufactured by Mueller Brass Co., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-529-5648?

NSN 4730-00-529-5648 has 1 cross-referenced part number: A4826 (Mueller Brass Co.).

What NSN replaces 4730-00-529-5648?

There are 4 known substitutes for 4730-00-529-5648: 3655-00-304-7479, 4420-00-360-2230, 5305-01-013-8276 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A4826?

Key specifications for A4826: Material: COPPER ALLOY OVERALL; Nominal Thread Size: 0.875 INCHES SECOND END IN; Thread Series Designator: UNS FIRST END; Seat Angle: 45.0 DEGREES SECOND END. 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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