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Datasheet. 10-40-256-010 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.
0.337in. ⁓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.
0.750in. ⁓3/4"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flat countersunk undercut
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.225in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.313in. ⁓21/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
cross recess type ii
The national stock number or the identification information of the end equipment for which the item is a part.
an/PAS-13D (v) 2, (v) 3; sight, thermal for medium and heavy weapons
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.112in. (UTS #4)
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
40
The included angle of the countersink.
100.0 degrees
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
fastener, 4-40 x .313 x 100 degree fh, ss, blk oxide, w/ VIBRA-Tite (phillips)
A characteristic of light that can be specified in terms of luminance,dominant wavelength,and purity.
black
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 302
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.
oxide
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
MIL-DTL-13924, class 4 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.
unc
Answers.
Unc
Steel comp 302
40
Flat countersunk undercut
0.337 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 5305-01-532-4740 SCREW,CAP,SOCKET HEAD
Used on an/pas-13d(v) 2, (v) 3; sight, thermal for medium and heavy weapons. unc thread series oxide surface treated fastener, 4-40 x .313 x 100 degree fh, ss, blk oxide, w/ vibra-tite (phillips) 40 thread quantity per inch flat countersunk undercut head style 0.337" thread length right-hand 2a thread class
- NIIN
- 015324740
- NIIN Date
- 08/10/05
- Schedule B
- 7318152000
- Name Code
- 16282
- FIIG
- A003B0
- QUP
- Historical Price
- $41.35 HD
- 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
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | 10-40-256 | Cage 32865 |
| 2. | 0412MP1SSBOVTSPEC | Cage 1Y0A2 |
Major End Users Countries and entities
- - Department of The Army
Availability for 10-40-256-010 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)
- 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 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
10-40-256-010 / Screw,cap,socket headWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter. the head has an internal socket or multiple spline for use with an inserted driver. a locking feature may be incorporated in the design of the head or threads. excludes items with bevel (conical) heads. see bolt, internal wrenching. excludes screw, shoulder; and screw, machine.
