PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4730005411756Adapter,straight,tube to Boss

E.c.a Etablissement Centrald'approvisionnement Des Forces Armee · NSN 4730-00-541-1756 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-541-1756 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-541-1756. Primary manufacturer part number: 4730005411756.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Nominal Thread Size: 0.750 INCHES CENTER BULKHEAD IN
  • Thread Class: 3A CENTER BULKHEAD A
  • Connection Style: FLARELESS (TUBE) FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Surface Treatment: CADMIUM OVERALL
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 1137 or Steel Comp 1141 or Steel Comp 4130 Overall construction
General Description

The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-00-541-1756, 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 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-541-1756
Primary Part Number4730005411756
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerE.c.a Etablissement Centrald'approvisionnement Des Forces Armee
StatusCANCELLED
Nominal Thread Size0.750 INCHES CENTER BULKHEAD IN
Thread Class3A CENTER BULKHEAD A
Connection StyleFLARELESS (TUBE) FIRST END
Nominal Outside Diameter Tube Accommodated0.500 INCHES FIRST END IN
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Surface TreatmentCADMIUM OVERALL
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
Seat Angle12.0 DEGREES FIRST END
Thread Class3A ALL ENDS A
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Nominal Thread Size0.750 INCHES ALL ENDS IN
MaterialSTEEL COMP 1137 OR STEEL COMP 1141 OR STEEL COMP 4130 OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TYPE 1,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Overall Length2.031 INCHES IN
Specification/standard Data96906-MS21924 GOVERNMENT STANDARD
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) CENTER BULKHEAD
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4730-00-194-1065MS21904D4 INTERCHANGEABLE
Elbow,tube
Sae International Dba Sae International
4730-00-541-1580AS21900-3 INTERCHANGEABLE
Nipple,boss
Sae International Dba Sae International
4730-00-684-4041MS21922-16C INTERCHANGEABLE
Sleeve,clinch,tube Fitting
Sae International Dba Sae International
4730-01-542-9621MS21924V8P INTERCHANGEABLE
Adapter,straight,tube to Boss
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
4730005411756 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
MS21924-8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MILF18280A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-194-1065INTERCHANGEABLE
ELBOW,TUBE
MS21904D4
4730-00-541-1580INTERCHANGEABLE
NIPPLE,BOSS
AS21900-3
4730-00-684-4041INTERCHANGEABLE
SLEEVE,CLINCH,TUBE FITTING
MS21922-16C
4730-01-542-9621INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
MS21924V8P

Frequently Asked Questions

What is NSN 4730-00-541-1756?

NSN 4730-00-541-1756 is a Adapter,straight,tube to Boss, manufactured by E.c.a Etablissement Centrald'approvisionnement Des Forces Armee, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-541-1756?

NSN 4730-00-541-1756 has 3 cross-referenced part numbers: 4730005411756 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), MS21924-8 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MILF18280A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-00-541-1756?

There are 4 known substitutes for 4730-00-541-1756: 4730-00-194-1065, 4730-00-541-1580, 4730-00-684-4041 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4730005411756?

Key specifications for 4730005411756: Nominal Thread Size: 0.750 INCHES CENTER BULKHEAD IN; Thread Class: 3A CENTER BULKHEAD A; Connection Style: FLARELESS (TUBE) FIRST END; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-541-1756 still in active supply?

NSN 4730-00-541-1756 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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