PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GWTX-WLN-SAdapter,straight,tube to Boss

Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division · NSN 4730-00-623-9137 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-623-9137 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-623-9137. Primary manufacturer part number: GWTX-WLN-S.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Thread Class: 2A CENTER BULKHEAD A
  • Thread Class: 2A ALL ENDS A
  • Criticality Code Justification: FEAT
  • Nominal Overall Length: 2.220 INCHES IN
  • Connection Style: FLARED W/ GASKET SEAL (BOSS) SECOND END
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Thread Series Designator: UNF CENTER BULKHEAD
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 4730-00-623-9137, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-623-9137
Primary Part NumberGWTX-WLN-S
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
StatusACTIVE
Thread Class2A CENTER BULKHEAD A
Thread Class2A ALL ENDS A
Criticality Code JustificationFEAT
Nominal Overall Length2.220 INCHES IN
Connection StyleFLARED W/ GASKET SEAL (BOSS) SECOND END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Thread Series DesignatorUNF CENTER BULKHEAD
MaterialSTEEL OVERALL
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Nominal Thread Size0.562 INCHES CENTER BULKHEAD IN
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Nondefinitive Spec/std Data3A FIGURE A
Thread Series DesignatorUNF ALL ENDS
Connection StyleFLARED (TUBE) FIRST END
Specification/standard Data81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51520 GOVERNMENT STANDARD
Nominal Thread Size0.562 INCHES ALL ENDS IN
Seat Angle37.0 DEGREES FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-826-23476-37-104 INTERCHANGEABLE
Adapter,straight,tube to Boss
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
Cross-Reference Index
Part NumberManufacturer
GWTX-WLN-S Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
MS51520B6 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
2041-6-6S Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
6-6070601CA Society of Automotive Engineers Inc (USA)
MIL-F-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
133331A Oshkosh Defense Llc (USA)
2041-6-6S Danfoss Power Solutions II, Llc (USA)
GWTX-WLN-S 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
000-4309 Fm Industries Inc (USA)
6-6070601CA Sae International Dba Sae International (USA)
133331A Oshkosh Corp (USA)
Related Parts
4730-00-826-2347INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
6-37-104

Frequently Asked Questions

What is NSN 4730-00-623-9137?

NSN 4730-00-623-9137 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: active.

What are the part numbers for NSN 4730-00-623-9137?

NSN 4730-00-623-9137 has 12 cross-referenced part numbers: GWTX-WLN-S (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), MS51520B6 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 2041-6-6S (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 6-6070601CA (Society of Automotive Engineers Inc), MIL-F-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 7 more.

What NSN replaces 4730-00-623-9137?

There is 1 known substitute for 4730-00-623-9137: 4730-00-826-2347. Verify interchangeability with system specifications before substitution.

What are the specifications of GWTX-WLN-S?

Key specifications for GWTX-WLN-S: Thread Class: 2A CENTER BULKHEAD A; End Item Identification: NSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM); FIREFIGHTING TRUCK; Thread Class: 2A ALL ENDS A; Criticality Code Justification: FEAT. 19 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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