PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4LHBU-SNipple,tube

Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division · NSN 4730-01-037-5536 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-037-5536 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-037-5536. Primary manufacturer part number: 4LHBU-S.
Features
  • Nipple,tube — FSC 4730
  • Nominal Overall Length: 1.110 INCHES IN
  • Material: STEEL OVERALL
  • Nominal Thread Size: 0.437 INCHES ALL ENDS IN
  • Surface Treatment Document and Classification: J514 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Specification/standard Data: 96906-MS51856 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
  • Connection Type: THREADED EXTERNAL BOSS ALL ENDS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Nipple,tube, cataloged under National Stock Number 4730-01-037-5536, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-01-037-5536
Primary Part Number4LHBU-S
Item NameNipple,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
StatusCANCELLED
Nominal Overall Length1.110 INCHES IN
MaterialSTEEL OVERALL
Nominal Thread Size0.437 INCHES ALL ENDS IN
Surface Treatment Document and ClassificationJ514 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Specification/standard Data96906-MS51856 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
Connection TypeTHREADED EXTERNAL BOSS ALL ENDS
Furnished Items and Quantity2 TUBE COUPLING NUT W/SLEEVE AND 2 PREFORMED PACKING
Style DesignatorFLARELESS W/ CENTER WRENCHING FACILITY
Nondefinitive Spec/std Data19C FIGURE
Thread Series DesignatorUNF ALL ENDS
Thread Class2A ALL ENDS A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5330-00-145-0220 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
4LHBU-S Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
4LHBU-S Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
J514 Society of Automotive Engineers Inc (USA)
MS51856-3 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-F-18866 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS51856-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
852844 Cae Usa Inc. (USA)
J514 Sae International Dba Sae International (USA)
4LHBUS Parker-Hannifin Corporation Div Gas Turbine Fuel Systems (USA)
852844 Raytheon Technical Services Company (USA)
Related Parts
5330-00-145-0220INTERCHANGEABLE
GASKET

Frequently Asked Questions

What is NSN 4730-01-037-5536?

NSN 4730-01-037-5536 is a Nipple,tube, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-037-5536?

NSN 4730-01-037-5536 has 11 cross-referenced part numbers: 4LHBU-S (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 4LHBU-S (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), J514 (Society of Automotive Engineers Inc), MS51856-3 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-F-18866 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 6 more.

What NSN replaces 4730-01-037-5536?

There is 1 known substitute for 4730-01-037-5536: 5330-00-145-0220. Verify interchangeability with system specifications before substitution.

What are the specifications of 4LHBU-S?

Key specifications for 4LHBU-S: Nominal Overall Length: 1.110 INCHES IN; Material: STEEL OVERALL; Nominal Thread Size: 0.437 INCHES ALL ENDS IN; Surface Treatment Document and Classification: J514 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-037-5536 still in active supply?

NSN 4730-01-037-5536 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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