The Nut,tube Coupling, cataloged under National Stock Number 4730-00-722-4891, 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 Hydrasearch Company, Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-722-4891 |
| Primary Part Number | AN818-8 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Hydrasearch Company, Llc |
| Status | CANCELLED |
| Thread Class | 3B |
| Nominal Thread Size | 0.750 INCHES IN |
| Smallest Inside Diameter | 0.570 INCHES NOMINAL IN |
| Width Across Flats | 0.875 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Nut Height | 0.843 INCHES NOMINAL IN |
| Nominal Tube Outside Diameter | 0.500 INCHES IN |
| Thread Quantity Per Inch | 16 |
| Nut Style | TUBE COUPLING |
| Length to Shoulder | 0.723 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND ZINC OVERALL |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Designator | AS MODIFIED BY SPECIAL FEATURES |
| Material | STEEL OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 7744716 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 4792-8 | Sun Test Systems B.v. (NLD) |
| AN818-8 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| AN818-8 | Crown Fitting Co Inc (USA) |
| AN818-8 | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA) |
| 10A10073 | Napco International Llc Dba Napco International Inc (USA) |
| AN818-8 | Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company (USA) |
| AN818-8 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| MILF5509 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| SAE-AS4841 | Sae International Dba Sae International (USA) |
| AN818-8 | Joint Electronics Type Designation System (USA) |
| AN818-8 | Faber Enterprises, Inc. Div Faber Enterprise Inc (USA) |
| 40F818-8 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| 30571 | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
| 9100X8 | Danfoss Power Solutions II, Llc (USA) |
| AS4841 | Sae International Dba Sae International (USA) |
| 9100X8 | Dana Corp Weatherhead Div (USA) |
| AS4841 | Society of Automotive Engineers Inc (USA) |
| AN818 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| 818-8S | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
NSN 4730-00-722-4891 is a Nut,tube Coupling, manufactured by Hydrasearch Company, Llc, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-722-4891 has 24 cross-referenced part numbers: 7744716 (U S Army Tank Automotive Command Amsta-Im-Mm), 4792-8 (Sun Test Systems B.v.), AN818-8 (Aeronautical Standards Group Dept of Navy and Air Force), AN818-8 (Crown Fitting Co Inc), AN818-8 (Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply) and 19 more.
There are 12 known substitutes for 4730-00-722-4891: 5950-00-001-2597, 7230-00-252-3394, 2805-00-354-0907 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for AN818-8: Thread Class: 3B; Nominal Thread Size: 0.750 INCHES IN; Smallest Inside Diameter: 0.570 INCHES NOMINAL IN; End Item Identification: GRUMMAN A-10 ACFT. 15 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-722-4891 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.