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Datasheet. 138912 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
RIGHT-Hand
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.300in. and 0.330in. ⁓11/32"
The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.
1.880in. ⁓1-57/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flat chamfer
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.490in. and 0.519in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.120in. ⁓1/8"
The length of a straight line which passes through the center of the shank unthreaded hole,and terminates at the inside circumference.
0.073in. first hole
0.344in. and 0.345in.
0.341in. and 0.342in.
0.240in.
0.305in. and 0.312in.
0.240in.
0.265in. and 0.305in.
0.275in.
0.855in.
1.850in.
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.312in. ⁓5/16"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
24
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
26.0 rockwell c and 32.0 rockwell c
The distance from the shank hole centerline to the largest bearing surface of the head.
1.760in. first hole
The number of externally relieved diameters on the body,adjacent to the head.
5
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 4140 or steel comp 8740
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unf
Answers.
Unf
Steel comp 4140 or steel comp 8740
24
Flat chamfer
0.300 inches minimum and 0.330 inches maximum
Right-hand
3a
Schedule B number: 7318152000
nmfc 093486
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5306 ⁓ Bolts
NSN 5306-00-302-8637 BOLT,EXTERNALLY RELIEVED BODY
unf thread series 24 thread quantity per inch flat chamfer head style 0.300" thread length right-hand 3a thread class
- NIIN
- 003028637
- NIIN Date
- 01/01/63
- Schedule B
- 7318152000
- Name Code
- 06675
- FIIG
- A003B0
- QUP
- Historical Price
- $3.50 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
Major End Users Countries and entities
- - Department of The Navy
- - Germany
- - Turkey
Availability for 138912 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)
- Bolts or nuts (iron or steel),(less than 35 feet)
- NMFC (national motor freight code)
- 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
- UFC (universal freight code)
- 48950
Similar by Design Other bolts with similar characteristics
Nothing similar to this part number was found in our inventory
138912 / Bolt,externally relieved bodyWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). it is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. excludes bolt, internal wrenching and thumbscrew. see also screw, externally relieved body.
