B16.1

B161 Pipe Flange

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Datasheet. B16.1 specification

Bolt Circle Diameter
The length of a straight line which passes through the center of a bolt circle,and terminates at the circumference.

3.125in.

Flange Diameter
The length of a straight line which passes through the center of a flange,and terminates at the circumference.

4.250in.

Thickness
A measurement of the smallest dimension of an item,in distinction from length or width.

0.440in. ⁓29/64"

Nominal Pipe Size For Which Designed
The industrial designation or term used to define the nominal diameter of pipe for which the item is designed.

1.000in.

Bolt Hole Quantity
The number of bolt holes provided on the item.

4

Bolt Hole Diameter
The length of a straight line which passes through the center of the bolt hole,and terminates at the circumference.

0.625in.

Neck Height

0.250in.

Flange Section Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the flange section.

plain face, raised neck

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

npt

Face Seating Surface Condition
The condition of the face seating surface of an item which contacts another surface.

machined

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

11-1/2

Maximum Operating Pressure And Media For Which Designed
The maximum pressure at which an item is rated to operate for each type of service with which an item may be used.

125.0 pounds per square inch gas and 175.0 pounds per square inch water

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

1.000in. ⁓1/64"

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

iron

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

round, one bolt hole circle

Specification/standard Data
The document designator of the specification or standard which established the item of supply.

80204-B16.1 professional/industrial association standard

Nondefinitive Spec/std Data
The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.

5 table

Answers.

What quantity is this sold in?

1EA

What is the style?

Round, one bolt hole circle

What material is the pipe flange made of ?

Iron

What is the thread quantity per inch?

11-1/2

What is the bolt hole quantity?

4

What is the NSN for B16.1?

4730-00-189-2685

How is this classified for shipping?

Schedule B number: 7307912000
nmfc 052190
Flanges of iron or nonalloy steel

What's the federal classification of B16.1?

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 4730-00-189-2685 FLANGE,PIPE

round, one bolt hole circle 11-1/2 thread quantity per inch 4 bolt hole quantity

NIIN
001892685
NIIN Date
01/01/63
Schedule B
7307912000 
Name Code
03798
FIIG
A23300
Item Weight
1.900lbs
Item Dimensions
--
QUP
Historical Price
$13.18 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. MS90520A03G Cage 96906
2. WW-F-406ACC03 Cage 81348
3. WWF406 Cage 81348

Major End Users Countries and entities

  • - Department of The Army 
  • - Department of The Navy 
  • - Department of The Air Force 
  • - U.s. Marine Corps 
  • - Brazil 
  • - Spain 
  • - Turkey 

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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 flanges with similar characteristics

Nothing similar to this part number was found in our inventory

B16.1 / Flange,pipeWhat is the formal definition of this item?

An item solid or split into halves, having a threaded or unthreaded hole for the purpose of connecting or retaining a pipe, tube, or hose fitting. the face of the flange may be smooth, grooved, or serrated and may be drilled for connecting bolts or studs. if the item is unthreaded, the pipe or tube may be retained by welding, brazing, compression, or the like. excludes flange, pipe, blind; ferrule, grooved clamp coupling; and adapter (as modified).