PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0503-8-6Adapter,straight,tube to Boss

Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division · NSN 4730-00-968-5578 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-968-5578 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-968-5578. Primary manufacturer part number: 0503-8-6.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Nominal Overall Length: 1.375 INCHES IN
  • Specification/standard Data: 96906-MS51525 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Surface Treatment Document and Classification: J514 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Seat Angle: 37.0 DEGREES FIRST END
  • Thread Series Designator: UNF ALL ENDS
  • Nominal Thread Size: 0.562 INCHES FIRST END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-00-968-5578, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 28 commercial cross-references from 21 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-968-5578
Primary Part Number0503-8-6
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
StatusCANCELLED
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Nominal Overall Length1.375 INCHES IN
Specification/standard Data96906-MS51525 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface Treatment Document and ClassificationJ514 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Seat Angle37.0 DEGREES FIRST END
Thread Series DesignatorUNF ALL ENDS
Nominal Thread Size0.562 INCHES FIRST END IN
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Thread Class2A ALL ENDS A
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data3B FIGURE
Furnished Items and Quantity1 TUBE COUPLING NUT AND 1 COUPLING SLEEVE AND 1 PREFORMED PACKING
Connection StyleFLARED (TUBE) FIRST END
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Nominal Thread Size0.750 INCHES SECOND END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3020-00-320-10041021094 INTERCHANGEABLE
Gear,spur
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4730-00-618-5381 INTERCHANGEABLE
Tee,tube
5330-00-757-7536A13893 INTERCHANGEABLE
Ring,wiper
Cnh Industrial America Llc Dba Cnh America
4730-01-395-7307202702-8-6S INTERCHANGEABLE
Adapter,straight,tube to Boss
Landoll Company, Llc
5950-01-469-9442 INTERCHANGEABLE
Transformer,power
6515-01-529-0662BP1-2AS INTERCHANGEABLE
Basket,stacking,sterilization
Cardinal Health 200, Llc
Cross-Reference Index
Part NumberManufacturer
743108 Clark Equipment Co (USA)
07-743108 Tvh Parts Co. (USA)
6D2714 Caterpillar Inc Div Caterpillar Defense (USA)
1219-620 Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations (USA)
0503-8-6 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
65C35665-3 Standard Mfg Co Inc (USA)
624VLH00204 Arrow-Master, Incorporated (USA)
102-1094 Landoll Company, Llc (USA)
310SD709 Clark Equipment Co (USA)
7/445/060843 Grove U.s. Llc Dba Grove Us Llc (USA)
6-8 070120CA Society of Automotive Engineers Inc (USA)
2027027-8-6S Danfoss Power Solutions II, Llc (USA)
07-743108 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
203102-6-6S Star Cases Llc Dba Zero Manufacturing (USA)
0503-8-6 Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
65C35665-3 Air Armament Center/ En (USA)
202702-8-6S Danfoss Power Solutions II, Llc (USA)
301SD709 Clark Equipment Co (USA)
A-13893 Arva Industries Inc (CAN)
AB0070743108 Wemco Inc (USA)
Related Parts
3020-00-320-1004INTERCHANGEABLE
GEAR,SPUR
1021094
4730-00-618-5381INTERCHANGEABLE
TEE,TUBE
5330-00-757-7536INTERCHANGEABLE
RING,WIPER
A13893
4730-01-395-7307INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
202702-8-6S
5950-01-469-9442INTERCHANGEABLE
TRANSFORMER,POWER
6515-01-529-0662INTERCHANGEABLE
BASKET,STACKING,STERILIZATION
BP1-2AS

Frequently Asked Questions

What is NSN 4730-00-968-5578?

NSN 4730-00-968-5578 is a Adapter,straight,tube to Boss, 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 4730-00-968-5578?

NSN 4730-00-968-5578 has 28 cross-referenced part numbers: 743108 (Clark Equipment Co), 07-743108 (Tvh Parts Co.), 6D2714 (Caterpillar Inc Div Caterpillar Defense), 1219-620 (Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations), 0503-8-6 (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division) and 23 more.

What NSN replaces 4730-00-968-5578?

There are 6 known substitutes for 4730-00-968-5578: 3020-00-320-1004, 4730-00-618-5381, 5330-00-757-7536 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0503-8-6?

Key specifications for 0503-8-6: Connection Type: THREADED EXTERNAL TUBE FIRST END; Nominal Overall Length: 1.375 INCHES IN; Specification/standard Data: 96906-MS51525 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Surface Treatment Document and Classification: J514 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-968-5578 still in active supply?

NSN 4730-00-968-5578 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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