MS21915-5-4

MS2191554 Boss Reducer

Price Quote Get an up to date pricing and availability quote for this product. Order online or over the phone.

Part Number:
Quantity Requested:
Your Email:
Full Name:
Contact Phone:
Company:

Quality Commitment

Serving our customers with quality and safety first.

  •   AS9120 Certified
  •   Audited supply chain
  •   ITAR Registered
  •   DDTC Registered
  •   HAZMAT Certified
  •   Customer service objectives
  •   Every product 100% inspected
AS9120 Certified by SAI Global

Datasheet. MS21915-5-4 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

3b 1st end

Reducer Type
Refers to the location of the ends whether on the same centerline (concentric) or on different centerlines (eccentric).

concentric

Connection Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.

external seat for gasket seal (boss) 2nd end

Connection Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.

gasket seal (boss) 1st end

Connection Type
Indicates the type of connection/s/.

threaded external boss 2nd end

Connection Type
Indicates the type of connection/s/.

threaded internal boss 1st end

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.438in. 2nd end ⁓2-1/64"

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.500in. 1st end ⁓1/64"

Nominal Overall Length
The nominal dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

1.281in.

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp 1137 or steel comp 1141 or steel comp 4130 or steel comp 4140

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

QQ-S-637 fed spec 1st material response and QQ-S-637 fed spec 2nd material response and MIL-S-6758 mil spec 3rd material response and MIL-S-5626 mil spec 4th material response

Surface Treatment
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.

cadmium inside

Surface Treatment
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.

cadmium outside

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

QQ-P-416, ty 1, cl 2 fed spec single treatment response inside

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

QQ-P-416, ty 1, cl 2 fed spec single treatment response outside

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unjf all ends

Answers.

What class is the thread series?

Unjf all ends

What material is the boss reducer made of ?

Steel comp 1137 or steel comp 1141 or steel comp 4130 or steel comp 4140

What is the thread class?

3b 1st end

What is the NSN for MS21915-5-4?

4730-00-403-4358

How is this classified for shipping?

Schedule B number: 7307994000
nmfc 052190
Other fittings nesoi of alloy steel not stainless

What's the federal classification of MS21915-5-4?

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 4730-00-403-4358 REDUCER,BOSS

unjf all ends thread series cadmium outside surface treated 3b 1st end thread class

NIIN
004034358
NIIN Date
06/24/70
Schedule B
7307994000 
Name Code
23541
FIIG
A080B0
Item Weight
0.200lbs
Item Dimensions
--
QUP
 
Historical Price
$118.00 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
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

Major End Users Countries and entities

  • - Spain 
  • - Republic of Korea 

Availability for MS21915-5-4 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)
50.0
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

MS21915-5-4 / 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).