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Datasheet. 12278923-1 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a
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.
0.285in. ⁓19/64"
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.
0.615in. ⁓5/8"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
fillister
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.547in. and 0.557in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.187in. ⁓3/16"
The length of a straight line which passes through the center of the shoulder and terminates at the circumference.
0.281in. all shoulders
The length of the enlarged portion of the shank on the item,in distinction from width or diameter.
0.300in. all shoulders
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
slot
The national stock number or the identification information of the end equipment for which the item is a part.
itank, full tracked, XM1; tank, full tracked, M1 w/improved armor; tank, full tracked, M1A1; sight gunners auxil, M1 abrams tank; gas, M1, optical improvement program; gas, M1A1, oip; gunner's aux sight M1A1 abrams tank
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.190in. (UTS #10)
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
32
The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.
round all shoulders
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.
identification plate type h, STYLE3; attached to head w/adhesive backing 12273343; 0.375 in dia; 0.020 in thk; initials az on plate 0.125 in high; slot 0.062 in wd, 2 places
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel corrosion resisting
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
astm A582, class 303, cond a assn std single material 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.
QQ-P-35 fed 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.
unf
Answers.
1EA
Unf
Steel corrosion resisting
32
Fillister
0.285 inches
Right-hand
2a
Schedule B number: 7318152000
nmfc 096640
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-155-5450 SCREW,SHOULDER
Used on itank,full tracked,xm1;tank,full tracked,m1 w/improved armor;tank,full tracked,m1a1;sight gunners auxil,m1 abrams tank;gas,m1,optical improvement program;gas,m1a1,oip;gunner's aux sight m1a1 abrams tank. unf thread series passivate surface treated identification plate type h, STYLE3; attached to head w/adhesive backing 12273343; 0.375 in dia; 0.020 in thk; initials az on plate 0.125 in high; slot 0.062 in wd, 2 places 32 thread quantity per inch fillister head style 0.285" thread length right-hand 2a thread class
- NIIN
- 011555450
- NIIN Date
- 06/10/83
- Schedule B
- 7318152000
- Name Code
- 22846
- FIIG
- A003B0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $40.63 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
Major End Users Countries and entities
- - Department of The Navy
- - Department of The Army
- - U.s. Marine Corps
- - Australia
Availability for 12278923-1 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)
- 70.0
- LCL (less than a car load rating)
- 70.0
- 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
- Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
- Commodity (for shipments via water)
- Metal hardware
- NMFC (national motor freight code)
- 096640 SCREWS, IRON OR STEEL
- UFC (universal freight code)
- 50600
Similar by Design Other screws with similar characteristics
Nothing similar to this part number was found in our inventory
12278923-1 / Screw,shoulderWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. it has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. the head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. no. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. a locking feature may be incorporated in the design of the head or threads. for items which are both shouldered and have an externally relieved body, use screw, externally relieved body. for items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. excludes bolt, internal wrenching and screw, cap, socket head.
