PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4BU-MNut,tube Coupling

Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division · NSN 4730-01-017-1457 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-017-1457 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-017-1457. Primary manufacturer part number: 4BU-M.
Features
  • Nut,tube Coupling — FSC 4730
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • 5 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid conveyance
  • Hydraulic system plumbing
General Description

The Nut,tube Coupling, cataloged under National Stock Number 4730-01-017-1457, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-017-1457
Primary Part Number4BU-M
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-466-7467 INTERCHANGEABLE
Locknut,tube Fitting
4730-00-727-9786 INTERCHANGEABLE
Elbow,tube
4730-00-800-1735 INTERCHANGEABLE
Tee,tube to Boss
4730-00-800-3121 INTERCHANGEABLE
Sleeve,clinch,tube Fitting
4730-00-800-3129 INTERCHANGEABLE
Sleeve,clinch,tube Fitting
4730-00-800-4790 INTERCHANGEABLE
Nut,tube Coupling
4730-00-801-3466 INTERCHANGEABLE
Nipple,tube
4730-00-849-9692 INTERCHANGEABLE
Tee,tube
4730-01-012-3977 INTERCHANGEABLE
Elbow,tube
4730-01-017-1246 INTERCHANGEABLE
Union,tube
Cross-Reference Index
Part NumberManufacturer
4BU-M Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
4BU-M Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
4-BU-M(OLD) Naval Inventory Control Point Mechanicsburg (USA)
MIL-F-21467 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
216-4363322 BC-F39 Naval Ship Systems Command (USA)
Related Parts
4730-00-466-7467INTERCHANGEABLE
LOCKNUT,TUBE FITTING
4730-00-727-9786INTERCHANGEABLE
ELBOW,TUBE
4730-00-800-1735INTERCHANGEABLE
TEE,TUBE TO BOSS
4730-00-800-3121INTERCHANGEABLE
SLEEVE,CLINCH,TUBE FITTING
4730-00-800-3129INTERCHANGEABLE
SLEEVE,CLINCH,TUBE FITTING
4730-00-800-4790INTERCHANGEABLE
NUT,TUBE COUPLING
4730-00-801-3466INTERCHANGEABLE
NIPPLE,TUBE
4730-00-849-9692INTERCHANGEABLE
TEE,TUBE
4730-01-012-3977INTERCHANGEABLE
ELBOW,TUBE
4730-01-017-1246INTERCHANGEABLE
UNION,TUBE
4730-01-017-1458INTERCHANGEABLE
NUT,TUBE COUPLING
4730-01-020-7517INTERCHANGEABLE
SLEEVE,CLINCH,TUBE FITTING

Frequently Asked Questions

What is NSN 4730-01-017-1457?

NSN 4730-01-017-1457 is a Nut,tube Coupling, 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 4730-01-017-1457?

NSN 4730-01-017-1457 has 5 cross-referenced part numbers: 4BU-M (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 4BU-M (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), 4-BU-M(OLD) (Naval Inventory Control Point Mechanicsburg), MIL-F-21467 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 216-4363322 BC-F39 (Naval Ship Systems Command).

What NSN replaces 4730-01-017-1457?

There are 12 known substitutes for 4730-01-017-1457: 4730-00-466-7467, 4730-00-727-9786, 4730-00-800-1735 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4BU-M?

Key specifications for 4BU-M: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 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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