NSN 4730-01-143-9017 MS5186056Z, MS51860-56Z, MILF18866
Product Details | TUBE FITTING LOCKNUT
4730-01-143-9017 An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also LOCKNUT, PIPE; NUT (1), TUBE COUPLING and NUT (1), PLAIN, HEXAGON.
Part Alternates: MS5186056Z, MS51860-56Z, MILF18866, MIL-F-18866 , 7F2050, 8 080118C, 8080118C, 8WLNC, 8WLN-C, J514, 4730-01-143-9017, 01-143-9017, 4730011439017, 011439017
Pipe, Tubing, Hose, and Fittings | Hose, Pipe, Tube, Lubrication, and Railing Fittings
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 47 | 10 DEC 1982 | 01-143-9017 | 17645 ( LOCKNUT, TUBE FITTING ) |
Demand History | NSN 4730-01-143-9017
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| MS5186056Z | 2025-10-282 | 100 | Canada |
| 4730-01-143-9017 | 2023-01-10 | 5702 | DIBBS |
| 4730-01-143-9017 | 2022-09-244 | 2778 | DIBBS |
| 4730-01-143-9017 | 2016-08-215 | 1924 | DIBBS |
| J514 | 2015-02-48 | 1 | us |
| 4730-01-143-9017 | 2011-07-193 | 385 | DIBBS |
| 4730-01-143-9017 | 2010-09-267 | 20 | United States |
| 4730-01-143-9017 | 2010-07-210 | 385 | DIBBS |
| 4730-01-143-9017 | 2010-04-120 | 385 | DIBBS |
| J514 | 2010-02-47 | 20 | us |
| 4730-01-143-9017 | 2009-11-321 | 385 | DIBBS |
| 4730-01-143-9017 | 2009-09-267 | 385 | DIBBS |
Cross Reference | NSN 4730-01-143-9017
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7F2050 | 11083 | CATERPILLAR INC. DBA CATERPILLAR |
| 8WLN-C | 30780 | PARKER-HANNIFIN CORPORATION DBA TUBE FITTINGS DIVISION |
| 8WLN-C | 98441 | PARKER-HANNIFIN CORPORATION DBA STRATOFLEX PRODUCTS DIVISION |
| MIL-F-18866 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY |
| MS51860-56Z | 0FW39 | BAE SYSTEMS TACTICAL VEHICLE SYSTEMS LP |
| MS51860-56Z | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS |
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Related Products | NSN 4730-01-143-9017
Technical Data | NSN 4730-01-143-9017
| Characteristic | Specifications |
|---|---|
| THREAD SERIES | UNF |
| NOMINAL THREAD SIZE | 0.750 INCHES |
| THREAD QUANTITY PER INCH | 16 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| NUT STYLE | A391 TUBE FITTING LOCKNUT |
| NUT HEIGHT | 0.310 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 1.000 INCHES NOMINAL |
| PACKING RECESS DIAMETER | ANY ACCEPTABLE |
| PACKING RECESS DEPTH | ANY ACCEPTABLE |
| NOMINAL TUBE OUTSIDE DIAMETER | 0.500 INCHES |
| SPECIFICATION/STANDARD DATA | 96906-MS51860 GOVERNMENT STANDARD AND 81343-514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| NONDEFINITIVE SPEC/STD DATA | 25B FIGURE |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51860-56Z |
Restrictions/Controls & Freight Information | NSN 4730-01-143-9017
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | A | Item does not contain precious metal |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| NMF Description | 093486 | BOLTS,NUTS OR SCREWS, NOI (SUB 3) |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| Water commodity Code | 573 | unknown |
| Originating Activity Code | AX | Defense Supply Center Columbus Columbus, OH 43216-5000 |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | B | Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |
Management | NSN 4730-01-143-9017
| Category | Code | Description |
|---|---|---|
| Materiel Category and Inventory Manager | J | Ground Forces Support Materiel (DLA/GSA Items) |
| Appropriation and Budget Activity | 2 | Stock Fund Secondary Items |
| Management Inventory Segment | 2 | NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable. |
| Specific Group/Generic Code | 0 | Medical Materiel |
| Weapons Systems/End Item or Homogeneous Group | 00 | DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item |
| Accounting Requirements Code | X | Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items. |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DA | Department of the Army |
| Service Organization | A | U.S. Army |
| Reparability | Z | This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item. |
| Acquisition Advice Codes | H | DIRECT DELIVERY UNDER A CENTRAL CONTRACT # (VENDOR STOCKED) Issue, transfer or shipment is not subject to specialized controls other than those imposed by IMM/Service/Agency supply policy. 1. The item is centrally managed and procured. 2. Normal issue is by direct shipment from the vendor to the user at the order of the ICP or IMM. However, orders may be shipped from stock by ICP or IMM distribution facilities when the vendor's minimum order quantity is not met, or when stocks are being drawn down. 3. Requisitions and fund citations will be submitted in accordance with IMM/Service/Agency Requisitioning Procedures. 4. Generally delivery will be made within applicable Service/Agency guidelines addressing customer required timeframe. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
5 EA : Each |
| Category | Code | Description |
|---|---|---|
| Stores Account Code | 1 | Marine Corps Stock Fund Account Item. |
| Combat Essentiality Code | 5 | Critical Repair Part to a Combat Essential End Item. Those parts or components whose failure in a combat essential end item will render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency. |
| Materiel Management Code | B | All CommoditiesDefense Logistics Agency, (DLA,) |
| Echelon Management Code | 2 | ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled. |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DM | U.S. Marine Corps |
| Service Organization | M | U.S. Marine Corps |
| Reparability | Z | Nonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code. |
| Acquisition Advice Codes | H | DIRECT DELIVERY UNDER A CENTRAL CONTRACT # (VENDOR STOCKED) Issue, transfer or shipment is not subject to specialized controls other than those imposed by IMM/Service/Agency supply policy. 1. The item is centrally managed and procured. 2. Normal issue is by direct shipment from the vendor to the user at the order of the ICP or IMM. However, orders may be shipped from stock by ICP or IMM distribution facilities when the vendor's minimum order quantity is not met, or when stocks are being drawn down. 3. Requisitions and fund citations will be submitted in accordance with IMM/Service/Agency Requisitioning Procedures. 4. Generally delivery will be made within applicable Service/Agency guidelines addressing customer required timeframe. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
5 EA : Each |
| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | H | DIRECT DELIVERY UNDER A CENTRAL CONTRACT # (VENDOR STOCKED) Issue, transfer or shipment is not subject to specialized controls other than those imposed by IMM/Service/Agency supply policy. 1. The item is centrally managed and procured. 2. Normal issue is by direct shipment from the vendor to the user at the order of the ICP or IMM. However, orders may be shipped from stock by ICP or IMM distribution facilities when the vendor's minimum order quantity is not met, or when stocks are being drawn down. 3. Requisitions and fund citations will be submitted in accordance with IMM/Service/Agency Requisitioning Procedures. 4. Generally delivery will be made within applicable Service/Agency guidelines addressing customer required timeframe. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
5 EA : Each |



