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Datasheet. MS21915-20-12 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a 2nd end
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3b 1st end
Refers to the location of the ends whether on the same centerline (concentric) or on different centerlines (eccentric).
concentric
The maximum temperature at which the item is rated to operate for an extended period of time.
275.0 deg fahrenheit single response
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.
external seat for gasket seal (boss) 2nd end
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.
gasket seal (boss) 1st end
Indicates the type of connection/s/.
threaded external boss 2nd end
Indicates the type of connection/s/.
threaded internal boss 1st end
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
12 all ends
The maximum pressure at which the item is rated for operation.
1500.0 pounds per square inch single response
A designation that is used for the purpose of general identification of the thread.
1.625in. 1st end ⁓1/64"
A designation that is used for the purpose of general identification of the thread.
1.062in. 2nd end ⁓2-1/64"
The nominal dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
2.156in.
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 302 or steel comp 303 or steel comp 304 or steel comp 316 or steel comp 321
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
66 fed std single material response
The type of media for which the item is designed.
aeronautical fluid single response
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
passivate
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
MIL-S-5002 mil spec single treatment response
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unj all ends
The document designator of the specification or standard which established the item of supply.
96906-MS21915 government standard and 81349-MIL-F-18280 government specification
Answers.
1EA
Unj all ends
Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 316 or steel comp 321
12 all ends
3b 1st end
3a 2nd end
Schedule B number: 7307994000
nmfc 052190
Other fittings nesoi of alloy steel not stainless
FSC 4730 ⁓ Hose, pipe, tube, lubrication, and railing fittings
Excluding air conditioning-heating fittings (fsc 4520); bituminized fiber and concrete fittings (fsc 5630); conduit boxes and fittings (fsc 5975); downspout fittings (fsc 5670); medical and surgical fittings (fsc 6515); laboratory fittings (fsc 6640); post caps and rail ends (fsc 5660); machine thread bushings and plugs (fsc 5365).
NSN 4730-00-978-6975 REDUCER,BOSS
unj all ends thread series passivate surface treated 12 all ends thread quantity per inch 3b 1st end thread class
- NIIN
- 009786975
- NIIN Date
- 01/01/62
- Schedule B
- 7307994000
- Name Code
- 23541
- FIIG
- A080B0
- Item Weight
- 0.700lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $292.88 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Metal content unknown
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | AS21915 | Cage 81343 |
| 2. | AS18280 | Cage 81343 |
| 3. | MS21915J20-12 | Cage 81343 |
| 4. | MIL-F-18280 | Cage 81349 |
| 5. | MS21915-20-12J | Cage 81343 |
Major End Users Countries and entities
- - Department of The Navy
- - Department of The Air Force
- - Spain
Availability for MS21915-20-12 A member of our team will provide you with a price and availability quote
Request a Quote »Shipping Information
- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- Rating variable
- LCL (less than a car load rating)
- Unknown
- Special Cargo
- No special type of cargo code applicable
- Air Freight (Minimum cargo door size required)
- Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- Customs Requirement Classification
- Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
- Commodity (for shipments via water)
- Metal and metal products, nos, (less than 35 feet)
- NMFC (national motor freight code)
- 052190 PIPE,TUBING,OR PIPE OR TUBING FITTI
- UFC (universal freight code)
- 30000
Similar by Design Other reducers with similar characteristics
Nothing similar to this part number was found in our inventory
MS21915-20-12 / Reducer,bossWhat is the formal definition of this item?
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).
