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Datasheet. 91257A635 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.
1.0000in. and 1.3125in. ⁓1-21/64"
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.
2.750in. ⁓2-3/4"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
hexagon
A measurement from the bottom to the top of the head,in distinction from depth.
0.250in. ⁓1/4"
0.5625in.
The national stock number or the identification information of the end equipment for which the item is a part.
mrap - cougar tow; mrap - cougar sabr/tow
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.375in. ⁓3/8"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
16
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
150000 pounds per square inch
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
33.0 rockwell c
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.
head marked with six radical lines to indicate grade 8
A characteristic of light that can be specified in terms of luminance,dominant wavelength,and purity.
yellow
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel
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.
chromate zinc
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unc
Answers.
Unc
Steel
16
Hexagon
1.0000 inches minimum and 1.3125 inches maximum
Right-hand
2a
Schedule B number: 7318152000
nmfc 093486
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-286-3983 SCREW,MACHINE
Used on mrap - cougar tow; mrap - cougar sabr/tow. unc thread series chromate zinc surface treated head marked with six radical lines to indicate grade 8 16 thread quantity per inch hexagon head style 1.0000" thread length right-hand 2a thread class
- NIIN
- 012863983
- NIIN Date
- 10/01/88
- Schedule B
- 7318152000
- Name Code
- 18257
- FIIG
- A500D0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- --
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Major End Users Countries and entities
- - Department of The Army
- - Department of The Navy
- - U.s. Marine Corps
- - Department of The Air Force
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- 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)
- Aircraft parts, to include test/tool sets and equipment (other than armament systems)
- NMFC (national motor freight code)
- 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
- UFC (universal freight code)
- 48950
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Nothing similar to this part number was found in our inventory
91257A635 / Screw,machineWhat 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, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
