PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A146Elbow,tube

Mueller Brass Co. · NSN 4730-00-198-8792 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-198-8792 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-198-8792. Primary manufacturer part number: A146.
Features
  • Elbow,tube — FSC 4730
  • Nominal Thread Size: 0.625 INCHES ALL ENDS IN
  • Operating Pressure: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Seat Angle: 45.0 DEGREES ALL ENDS
  • Media for Which Designed: STEAM FIRST RESPONSE
  • Thread Series Designator: UNF ALL ENDS
  • Thread Series Designator: UNF ALL ENDS
  • Connection Style: FLARED (TUBE) ALL ENDS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy 377 or Copper Alloy 360 Overall construction
General Description

The Elbow,tube, cataloged under National Stock Number 4730-00-198-8792, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-198-8792
Primary Part NumberA146
Item NameElbow,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMueller Brass Co.
StatusACTIVE
Nominal Thread Size0.625 INCHES ALL ENDS IN
Operating Pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Seat Angle45.0 DEGREES ALL ENDS
Media for Which DesignedSTEAM FIRST RESPONSE
Thread Series DesignatorUNF ALL ENDS
Thread Series DesignatorUNF ALL ENDS
Connection StyleFLARED (TUBE) ALL ENDS
Operating Pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Leg Length1.031 INCHES MINIMUM AND 1.125 INCHES MAXIMUM SECOND END IN
Thread Class3A ALL ENDS A
Material Document and ClassificationQQ-B-626,COMP 21 OR COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Nominal Outside Diameter Tube Accommodated0.375 INCHES ALL ENDS IN
Leg Length1.060 INCHES MINIMUM AND 1.125 INCHES MAXIMUM FIRST END IN
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Maximum Operating Temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Flow Angle90.0 DEGREES
MaterialCOPPER ALLOY 377 OR COPPER ALLOY 360 OVERALL
MaterialCOPPER ALLOY 377 OR COPPER ALLOY 360 OVERALL
Seat Angle45.0 DEGREES ALL ENDS
Material Document and ClassificationQQ-B-626,COMP 21 OR COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Thread Size0.625 INCHES ALL ENDS IN
Nominal Outside Diameter Tube Accommodated0.375 INCHES ALL ENDS IN
Flow Angle90.0 DEGREES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-118-8129278-2113-010 INTERCHANGEABLE
Transformer,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
3455-00-230-7047717-015663 INTERCHANGEABLE
Cutter,milling,plain
Doall Baltimore Company
2990-00-360-7975A146 INTERCHANGEABLE
Bracket,mounting,en
Am General Llc
5120-00-409-5234215-01187-17 INTERCHANGEABLE
Locating Tool,harne
Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division
4320-00-468-0976A146 INTERCHANGEABLE
Impeller R H
Circor Naval Solutions Llc Dba Warren Pumps
2995-01-143-00492-171-110-01 INTERCHANGEABLE
Detector,metallic Particle
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
4820-01-242-4403BB-1 INTERCHANGEABLE
Cock,drain
Catching Engineering Co
Cross-Reference Index
Part NumberManufacturer
A146 PRIMARY Mueller Brass Co. (USA)
655F3-8 Imperial (USA)
655-F-06 Imperial (USA)
Related Parts
5950-00-118-8129INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
278-2113-010
3455-00-230-7047INTERCHANGEABLE
CUTTER,MILLING,PLAIN
717-015663
2990-00-360-7975INTERCHANGEABLE
BRACKET,MOUNTING,EN
A146
5120-00-409-5234INTERCHANGEABLE
LOCATING TOOL,HARNE
215-01187-17
4320-00-468-0976INTERCHANGEABLE
IMPELLER R H
A146
2995-01-143-0049INTERCHANGEABLE
DETECTOR,METALLIC PARTICLE
2-171-110-01
4820-01-242-4403INTERCHANGEABLE
COCK,DRAIN
BB-1

Frequently Asked Questions

What is NSN 4730-00-198-8792?

NSN 4730-00-198-8792 is a Elbow,tube, manufactured by Mueller Brass Co., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-198-8792?

NSN 4730-00-198-8792 has 3 cross-referenced part numbers: A146 (Mueller Brass Co.), 655F3-8 (Imperial), 655-F-06 (Imperial).

What NSN replaces 4730-00-198-8792?

There are 7 known substitutes for 4730-00-198-8792: 5950-00-118-8129, 3455-00-230-7047, 2990-00-360-7975 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A146?

Key specifications for A146: Nominal Thread Size: 0.625 INCHES ALL ENDS IN; Operating Pressure: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Seat Angle: 45.0 DEGREES ALL ENDS; Media for Which Designed: STEAM FIRST RESPONSE. 25 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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