The Nut,tube Coupling, cataloged under National Stock Number 4730-00-463-0689, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-463-0689 |
| Primary Part Number | MIL-DTL-18866 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Thread Quantity Per Inch | 16 |
| Nut Style | TUBE COUPLING |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Material | STEEL COMP 12L14 OVERALL |
| Width Across Flats | 0.875 INCHES NOMINAL IN |
| Nominal Tube Outside Diameter | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Smallest Inside Diameter | 0.505 INCHES NOMINAL IN |
| Nut Height | 0.840 INCHES NOMINAL IN |
| Thread Series | UNF |
| Thread Class | 2B |
| Nominal Thread Size | 0.750 INCHES IN |
| Length to Shoulder | 0.599 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN |
| Fabrication Method | MACHINED |
| Seat Angle | 45.00 DEGREES NOMINAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-DTL-18866 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 8 080110C | Society of Automotive Engineers Inc (USA) |
| MS51823-6 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 8-BU-S CNC | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 4730004630689 | E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| MS51823-6 | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 8 080110C | Sae International Dba Sae International (USA) |
| MS51823-6 | Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA) |
NSN 4730-00-463-0689 is a Nut,tube Coupling, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-463-0689 has 8 cross-referenced part numbers: MIL-DTL-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 8 080110C (Society of Automotive Engineers Inc), MS51823-6 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 8-BU-S CNC (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 4730004630689 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee) and 3 more.
There is 1 known substitute for 4730-00-463-0689: 4730-00-827-4580. Verify interchangeability with system specifications before substitution.
Key specifications for MIL-DTL-18866: Thread Quantity Per Inch: 16; Nut Style: TUBE COUPLING; Surface Treatment: CADMIUM OR ZINC OVERALL; Material: STEEL COMP 12L14 OVERALL. 15 total characteristics are documented in the Federal Logistics Information System.