PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6138952-46Elbow,pipe to Tube

Naval Facilities Engineering Command · NSN 4730-00-115-3773 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-115-3773 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-115-3773. Primary manufacturer part number: 6138952-46.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Media for Which Designed: AIR SECOND RESPONSE
  • Surface Treatment: PASSIVATE OVERALL
  • Furnished Items and Quantity: 1 TUBE COUPLING NUT W/SLEEVE
  • Nominal Thread Size: 0.750 INCHES ALL ENDS IN
  • Media for Which Designed: HYDRAULIC FLUID FIRST RESPONSE
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 316 or Steel Comp 303 Overall construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-115-3773, 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 Naval Facilities Engineering Command. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-115-3773
Primary Part Number6138952-46
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNaval Facilities Engineering Command
StatusACTIVE
Media for Which DesignedAIR SECOND RESPONSE
Surface TreatmentPASSIVATE OVERALL
Furnished Items and Quantity1 TUBE COUPLING NUT W/SLEEVE
Nominal Thread Size0.750 INCHES ALL ENDS IN
Media for Which DesignedHYDRAULIC FLUID FIRST RESPONSE
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Maximum Operating Temp-65.0 FAHRENHEIT SECOND RESPONSE DEGF
Surface Treatment Document and ClassificationQQ-P-35,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Flow Angle90.0 DEGREES
Seat Angle37.0 DEGREES FIRST END
Thread Series DesignatorNPTF SECOND END
Thread Series DesignatorUNF FIRST END
Material Document and ClassificationFED STD 66,COMP 300 SERIES FED STD SINGLE MATERIAL RESPONSE OVERALL
Specification/standard Data96906-MS51504 GOVERNMENT STANDARD
Connection StyleFLARED (TUBE) FIRST END
Maximum Operating Temp250.0 FAHRENHEIT FIRST RESPONSE DEGF
Leg Length1.594 INCHES NOMINAL SECOND END IN
Thread Class2A FIRST END A
Connection StylePLAIN (PIPE) SECOND END
Leg Length1.422 INCHES NOMINAL FIRST END IN
MaterialSTEEL COMP 316 OR STEEL COMP 303 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4730-01-091-80314-6FUSS INTERCHANGEABLE
Adapter,straight,pipe to Tube
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
4330-01-299-4129927588 INTERCHANGEABLE
Filter Element,fluid
Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
4720-01-364-44203010606-6-6-6C-60.00 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
4730-01-364-60348 OBU-SS INTERCHANGEABLE
Tee,pipe to Tube
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
4720-01-364-60464210606-4-4-4C-54.00 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
4720-01-365-25383010606-8-8-8C-36.00 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
4720-01-365-28933010606-6-6-6C-70 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
4720-01-365-28943010606-8-8-8C-165 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
4720-01-369-599370-200 INTERCHANGEABLE
Hose,nonmetallic
Burke Industries Purosil Div
4330-01-372-499440CN2-20QN25-E1-E1-1 INTERCHANGEABLE
Filter,fluid
Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
Cross-Reference Index
Part NumberManufacturer
6138952-46 Naval Facilities Engineering Command (USA)
MS51504A8-12S Imperial (USA)
MS51504A8-12S Parker Hannifin Corp Hose Products Div (USA)
MS51504A8-12S Lube Devices Inc Flodar Fluid Power Fittings Div (USA)
MS51504A8-12S Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51504A8-12S Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
MIL-DTL-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS51504A8-12S L and L Mfg Co (USA)
6138952 Naval Facilities Engineering Command (USA)
MS51504A8-12S Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
MS51504A8-12S Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
Related Parts
4730-01-091-8031INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4-6FUSS
4330-01-299-4129INTERCHANGEABLE
FILTER ELEMENT,FLUID
927588
4720-01-364-4420INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3010606-6-6-6C-60.00
4730-01-364-6034INTERCHANGEABLE
TEE,PIPE TO TUBE
8 OBU-SS
4720-01-364-6046INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4210606-4-4-4C-54.00
4720-01-365-2538INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3010606-8-8-8C-36.00
4720-01-365-2893INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3010606-6-6-6C-70
4720-01-365-2894INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3010606-8-8-8C-165
4720-01-369-5993INTERCHANGEABLE
HOSE,NONMETALLIC
70-200
4330-01-372-4994INTERCHANGEABLE
FILTER,FLUID
40CN2-20QN25-E1-E1-1

Frequently Asked Questions

What is NSN 4730-00-115-3773?

NSN 4730-00-115-3773 is a Elbow,pipe to Tube, manufactured by Naval Facilities Engineering Command, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-115-3773?

NSN 4730-00-115-3773 has 11 cross-referenced part numbers: 6138952-46 (Naval Facilities Engineering Command), MS51504A8-12S (Imperial), MS51504A8-12S (Parker Hannifin Corp Hose Products Div), MS51504A8-12S (Lube Devices Inc Flodar Fluid Power Fittings Div), MS51504A8-12S (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 6 more.

What NSN replaces 4730-00-115-3773?

There are 10 known substitutes for 4730-00-115-3773: 4730-01-091-8031, 4330-01-299-4129, 4720-01-364-4420 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6138952-46?

Key specifications for 6138952-46: Media for Which Designed: AIR SECOND RESPONSE; Surface Treatment: PASSIVATE OVERALL; Furnished Items and Quantity: 1 TUBE COUPLING NUT W/SLEEVE; Nominal Thread Size: 0.750 INCHES ALL ENDS IN. 22 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com