NSN 4730-00-289-2777 MS21916D43, MS21916D4-3, ER894D43
Product Details | BOSS REDUCER
4730-00-289-2777 A straight fitting having a boss connection of a different size at each end. Both connections have external or internal machine threads (straight threads other than pipe or hose series) and are designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. Excludes BUSHING (as modified).
Part Alternates: MS21916D43, MS21916D4-3, ER894D43, ER894D4-3, ER919D43, ER919D4-3, 215-26435-1, 3117151, 4730-00-289-2777, 00-289-2777, 4730002892777, 215264351, 002892777
Pipe, Tubing, Hose, and Fittings | Hose, Pipe, Tube, Lubrication, and Railing Fittings
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 47 | 01 JAN 1961 | 00-289-2777 | 23541 ( REDUCER, BOSS ) |
Demand History | NSN 4730-00-289-2777
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| MS21916D43 | 2025-01-30 | 4 | United States |
| MS21916D43 | 2009-07-209 | 4 | US |
Cross Reference | NSN 4730-00-289-2777
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 215-26435-1 | 80378 | TRIUMPH AEROSTRUCTURES, LLC DBA TRIUMPH AEROSTRUCTURES - VOUGHT |
| 3117151 | 001JK | EMBRAER S/A |
| 3117151 | FB459 | EMBRAER AVIATION INTERNATIONAL |
| 3117151 | S4956 | EMBRAER EMPRESA BRASILEIRA DE AERONAUTICA SA |
| ER894D4-3 | 79470 | DANA CORP WEATHERHEAD DIV |
| ER919D4-3 | 79470 | DANA CORP WEATHERHEAD DIV |
| MS21916D4-3 | 00624 | EATON CORPORATION DBA AEROSPACE DIV |
| MS21916D4-3 | 03647 | GLOBE AEROSPACE INC |
| MS21916D4-3 | 14397 | FABER ENTERPRISES, INC. |
| MS21916D4-3 | 79470 | DANA CORP WEATHERHEAD DIV |
| MS21916D4-3 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS |
| MS21916D4-3 | R1120 | SATAIR A/S |
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Related Products | NSN 4730-00-289-2777
Technical Data | NSN 4730-00-289-2777
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 6,CL 2,GOLD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID 1ST RESPONSE OXYGEN, GASEOUS 2ND RESPONSE |
| MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 225.0 DEG FAHRENHEIT 1ST RESPONSE -65.0 DEG FAHRENHEIT 2ND RESPONSE |
| CONNECTION TYPE | THREADED EXTERNAL BOSS ALL ENDS |
| CONNECTION STYLE | B71A EXTERNAL SEAT FOR GASKET SEAL ALL ENDS |
| THREAD SERIES DESIGNATOR | UNJF ALL ENDS |
| NOMINAL THREAD SIZE | 0.438 INCHES 1ST END 0.375 INCHES 2ND END |
| THREAD CLASS | 3A ALL ENDS |
| NOMINAL OVERALL LENGTH | 1.141 INCHES |
| REDUCER TYPE | CONCENTRIC |
| SPECIFICATION/STANDARD DATA | 96906-MS21916 GOVERNMENT STANDARD |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS21916D4-3 |
Restrictions/Controls & Freight Information | NSN 4730-00-289-2777
| 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: | U | Precious metal type is unknown |
| Criticality Code: | F | The item is an Aviation Critical Safety Item/Flight Safety Critical Aircraft Part ((ACSI/FSCAP). |
| Category | Code | Description |
|---|---|---|
| NMF Description | 051400 | PIPE FITTINGS ALUMINUM |
| Less than car load rating | ||
| Less than truck load rating | P | 77.5 |
| Water commodity Code | 576 | unknown |
| Originating Activity Code | XX | |
| 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 4730-00-289-2777
Army
Navy| 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 | B | Rotary Wing Aircraft |
| Weapons Systems/End Item or Homogeneous Group | BJ | AH-64 Airframe |
| 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 | V | TERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 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 | V | TERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |