123721-1

1237211 Boss Coupling

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Datasheet. 123721-1 specification

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

3b all ends

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

gasket seal (boss) all ends

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.

0.750in. 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.

2.688in.

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

2.312 in.dia by 0.188 in.thd flange w/four 0.220 in.min/0.226 in.max dia holes equally spaced on 1.875 in.dia bolt circle, located 0.312 in.from end

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

steel

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.

66, aisi 302/sae 30302 fed std single material response or 66, aisi 304/sae 30304 fed std single 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.

passivate 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.

passivate outside

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

plain

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 quantity is this sold in?

1EA

What class is the thread series?

Unjf all ends

What is the style?

Plain

What material is the boss coupling made of ?

Steel

What is the thread class?

3b all ends

What is the NSN for 123721-1?

4730-00-803-5912

How is this classified for shipping?

Schedule B number: 7307992000
nmfc 052190
Other fittings nesoi of iron or nonalloy steel

What's the federal classification of 123721-1?

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 4730-00-803-5912 COUPLING,BOSS

unjf all ends thread series plain passivate outside surface treated 2.312 in.dia by 0.188 in.thd flange w/four 0.220 in.min/0.226 in.max dia holes equally spaced on 1.875 in.dia bolt circle, located 0.312 in.from end 3b all ends thread class

NIIN
008035912
NIIN Date
04/15/68
Schedule B
7307992000 
Name Code
26953
FIIG
A080B0
QUP
Historical Price
$377.83 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. 123721 Cage 24390

Major End Users Countries and entities

  • - Defense Logistics Agency 

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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 couplings with similar characteristics

Nothing similar to this part number was found in our inventory

123721-1 / Coupling,bossWhat is the formal definition of this item?

A straight one-piece fitting 12 inches (304 mm) long or under having the same size fitting on each end (straight machine threads other than pipe or hose series). it may have internal threads on both ends or internal threads on one end and external threads on the other designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. it is designed to join two bosses or boss fittings. excludes items having external threaded connections on both ends.