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Datasheet. 1894794 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.
1.635in. and 1.680in. ⁓1-11/16"
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.
1.985in. and 2.030in. ⁓2-1/32"
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.
0.450in. and 0.460in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.306in. and 0.312in. ⁓5/16"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
hexagon
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 shortest straight line between flats,perpendicular to the height.
0.250in. and 0.253in. ⁓17/64"
Those features,not otherwise specified,which may be required for proper functioning of the item.
finished head
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
18
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
32.0 rockwell c and 38.0 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.
high grade alloy steel; used on avco starter 1114673; lubricant finish, dry to touch, per GM4435-M, code A72; GM1131-M, type d sealer around flat under the head; 0.2712 in. min. and 0.2752 in. max. pitch dia. of threadedportion; 0.2764 in. max. pitch dia. after phosphate coating; head bearing surface must be free of tool marks; 0.350 in. min. lg unthreaded portion of fastener; BALL-Type internal wrenching facility; flat u.s. standard screw point, w/ chamfer 35 deg. min. and 40 deg. max. to minor dia.
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.
phosphate
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
G-4435-M, code A72 mfr ref 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
The controlling activity and identification of a document used in lieu of a specification in the procurement of an item of supply.
16764-P30S31S1
Answers.
Unc
Steel
18
Flat chamfer
1.635 inches minimum and 1.680 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 5305-01-126-9277 SCREW,CAP,SOCKET HEAD
unc thread series phosphate surface treated high grade alloy steel; used on avco starter 1114673; lubricant finish, dry to touch, per GM4435-m, code A72; GM1131-m, type d sealer around flat under the head; 0.2712 in. min. 18 thread quantity per inch flat chamfer head style 1.635" thread length right-hand 2a thread class
- NIIN
- 011269277
- NIIN Date
- 02/20/82
- Schedule B
- 7318152000
- Name Code
- 16282
- FIIG
- A003B0
- Item Weight
- 0.100lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $15.15 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
Other Part Numbers Parts with same form, fit, and function by other manufacturers
Major End Users Countries and entities
- - Department of The Army
- - U.s. Marine Corps
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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)
- 50.0
- 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)
- 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
- UFC (universal freight code)
- 48950
Similar by Design Other screws with similar characteristics
Nothing similar to this part number was found in our inventory
1894794 / 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.
