PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51500A6SAdapter,straight,pipe to Tube

L and L Mfg Co · NSN 4730-00-836-7807 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-836-7807 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-836-7807. Primary manufacturer part number: MS51500A6S.
Features
  • Adapter,straight,pipe to Tube — FSC 4730
  • Nominal Thread Size: 0.562 INCHES FIRST END IN
  • Furnished Items and Quantity: 1 FLARED SLEEVE AND 1 SHORT COUPLING NUT
  • Surface Treatment Document and Classification: QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE
  • Connection Style: FLARED (TUBE) FIRST END
  • Thread Class: 2A FIRST END A
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Specification/standard Data: 96906-MS51500 GOVERNMENT STANDARD AND MIL-F-18866 GOVERNMENT SPECIFICATION AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-836-7807, 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 L and L Mfg Co. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 27 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-836-7807
Primary Part NumberMS51500A6S
Item NameAdapter,straight,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerL and L Mfg Co
StatusCANCELLED
Nominal Thread Size0.562 INCHES FIRST END IN
Furnished Items and Quantity1 FLARED SLEEVE AND 1 SHORT COUPLING NUT
Surface Treatment Document and ClassificationQQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE
Connection StyleFLARED (TUBE) FIRST END
Thread Class2A FIRST END A
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Specification/standard Data96906-MS51500 GOVERNMENT STANDARD AND MIL-F-18866 GOVERNMENT SPECIFICATION AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Media for Which DesignedHYDRAULIC FLUID SINGLE RESPONSE
Thread Series DesignatorNPTF SECOND END
Nondefinitive Spec/std Data2A FIGURE A
MaterialSTEEL CORROSION RESISTING OVERALL
Thread Series DesignatorUNF FIRST END
Connection StylePLAIN (PIPE) SECOND END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Surface TreatmentPASSIVATE INSIDE
Maximum Operating Temp121.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Nominal Thread Size0.250 INCHES SECOND END IN
Seat Angle37.0 DEGREES FIRST END
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Nominal Overall Length1.430 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5961-00-813-0389 INTERCHANGEABLE
Semiconductor Device,diode
4730-01-239-75012021-4-6C INTERCHANGEABLE
Adapter,straight,pipe to Tube
Danfoss Power Solutions II, Llc
4730-01-469-0150 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Cross-Reference Index
Part NumberManufacturer
MS51500A6S L and L Mfg Co (USA)
2410076 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
85-32050 PC22 Aeronautical and Support Equipment Type/asetds/aflcmc/ezsc (USA)
MIL-F-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
31A10S7 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
TG202642 PC16 Teledyne Industries Inc Teledyne Power Systems Div (USA)
518-5940836 ITE Naval Sea Systems Command (USA)
MS51500A6S Lube Devices Inc Flodar Fluid Power Fittings Div (USA)
MIL-DTL-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS51500A6S Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51500A6S Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
2014-96 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
MS51500A6S-8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
6FBTX-SS Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
6-4 070102SA Sae International Dba Sae International (USA)
518-5940836 Naval Sea Systems Command (USA)
MS51500B6S Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
6FBTX-SS Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
MS51500A6S Imperial (USA)
6FBTXSS Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
Related Parts
5961-00-813-0389INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4730-01-239-7501INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
2021-4-6C
4730-01-469-0150INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE

Frequently Asked Questions

What is NSN 4730-00-836-7807?

NSN 4730-00-836-7807 is a Adapter,straight,pipe to Tube, manufactured by L and L Mfg Co, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-836-7807?

NSN 4730-00-836-7807 has 27 cross-referenced part numbers: MS51500A6S (L and L Mfg Co), 2410076 (Huntington Ingalls Inc Div Newport News Shipbuilding), 85-32050 PC22 (Aeronautical and Support Equipment Type/asetds/aflcmc/ezsc), MIL-F-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 31A10S7 (Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture) and 22 more.

What NSN replaces 4730-00-836-7807?

There are 3 known substitutes for 4730-00-836-7807: 5961-00-813-0389, 4730-01-239-7501, 4730-01-469-0150. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51500A6S?

Key specifications for MS51500A6S: Nominal Thread Size: 0.562 INCHES FIRST END IN; Furnished Items and Quantity: 1 FLARED SLEEVE AND 1 SHORT COUPLING NUT; Surface Treatment Document and Classification: QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE INSIDE; Connection Style: FLARED (TUBE) FIRST END. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-836-7807 still in active supply?

NSN 4730-00-836-7807 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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