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Datasheet. A25A978-101-39 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.
0.750in. ⁓3/4"
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.
2.620in. ⁓2-5/8"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
knurled no. 1
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.880in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.380in. ⁓25/64"
The length of a straight line which passes through the center of the shoulder and terminates at the circumference.
0.499in. first shoulder and 0.500in. first shoulder
The length of the enlarged portion of the shank on the item,in distinction from width or diameter.
1.870in. first shoulder
The style designation indicating the configuration that most nearly corresponds to the appearance of the point.
pointless
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.250in. ⁓1/4"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
28
The physical configuration of the unthreaded portion of a body adjacent to the head which is larger than the diameter of the shank.
round first shoulder
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.
shoulder tapered 5 deg by 0.940 in. lg
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 303
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
QQ-S-764 cond a fed spec single material 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 comp 303
28
Knurled no. 1
0.750 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 5305 ⁓ Screws
NSN 5305-00-005-1545 THUMBSCREW
unf thread series shoulder tapered 5 deg by 0.940 in. lg 28 thread quantity per inch knurled no. 1 head style 0.750" thread length right-hand 3a thread class
- NIIN
- 000051545
- NIIN Date
- 06/16/72
- Schedule B
- 7318152000
- Name Code
- 06673
- FIIG
- A003B0
- QUP
- 1
- Historical Price
- $64.93 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
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | 2910000051545 | Cage SCY13 |
Major End Users Countries and entities
- - Morocco
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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
- Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft
- 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 thumbscrews with similar characteristics
Nothing similar to this part number was found in our inventory
A25A978-101-39 / ThumbscrewWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter. it may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. it has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. for items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).
