PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R44118-D6Locknut,tube Fitting

Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division · NSN 4730-01-040-0951 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-040-0951 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-040-0951. Primary manufacturer part number: R44118-D6.
Features
  • Locknut,tube Fitting — FSC 4730
  • Material Document and Classification: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: ANODIZE OVERALL
  • Nominal Thread Size: 0.562 INCHES IN
  • Thread Direction: RIGHT-HAND
  • Nut Height: 0.244 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: MIL-A-8625,TYPE3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Width Across Flats: 0.812 INCHES NOMINAL IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Locknut,tube Fitting, cataloged under National Stock Number 4730-01-040-0951, 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 Stratoflex Product Division. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 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
NSN4730-01-040-0951
Primary Part NumberR44118-D6
Item NameLocknut,tube Fitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division
StatusACTIVE
Material Document and ClassificationQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentANODIZE OVERALL
Nominal Thread Size0.562 INCHES IN
Thread DirectionRIGHT-HAND
Nut Height0.244 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationMIL-A-8625,TYPE3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Width Across Flats0.812 INCHES NOMINAL IN
Thread Quantity Per Inch18
Thread SeriesUNJS
Nut StyleTUBE FITTING LOCKNUT
MaterialALUMINUM ALLOY OVERALL
Packing Recess Depth0.025 INCHES NOMINAL IN
Packing Recess Diameter0.578 INCHES NOMINAL IN
Thread Class3B
Nominal Tube Outside Diameter0.375 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-814-3358CS14 INTERCHANGEABLE
Setscrew
Roller Bearing Co of America, Inc Div Pic Design
Cross-Reference Index
Part NumberManufacturer
10108492 Nimikkeistokeskus Ncb Finland (FIN)
ST7M223D6 The Boeing Company Div Defense (USA)
ST7M223D6 Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA)
R44118-D6 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA)
ST7M223D6 Bailey Hose Inc (USA)
ST7M223D6 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA)
ST7M223D6 Nelson Aero Space, Inc. (USA)
ST7M223 The Boeing Company Div Defense (USA)
Related Parts
5305-00-814-3358INTERCHANGEABLE
SETSCREW
CS14

Frequently Asked Questions

What is NSN 4730-01-040-0951?

NSN 4730-01-040-0951 is a Locknut,tube Fitting, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-040-0951?

NSN 4730-01-040-0951 has 8 cross-referenced part numbers: 10108492 (Nimikkeistokeskus Ncb Finland), ST7M223D6 (The Boeing Company Div Defense), ST7M223D6 (Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company), R44118-D6 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), ST7M223D6 (Bailey Hose Inc) and 3 more.

What NSN replaces 4730-01-040-0951?

There is 1 known substitute for 4730-01-040-0951: 5305-00-814-3358. Verify interchangeability with system specifications before substitution.

What are the specifications of R44118-D6?

Key specifications for R44118-D6: Material Document and Classification: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: ANODIZE OVERALL; Nominal Thread Size: 0.562 INCHES IN; Thread Direction: RIGHT-HAND. 15 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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