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Datasheet. 20399 specification
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
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
headless (setscrew)
The style designation indicating the configuration that most nearly corresponds to the appearance of the point.
oval
The national stock number or the identification information of the end equipment for which the item is a part.
nsn 2420-01-535-4061
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.
20
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
oval pt setscrew 1/4
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
20
Headless (setscrew)
Right-hand
FSC 5305 ⁓ Screws
NSN 5305-01-612-2539 SETSCREW
Used on nsn 2420-01-535-4061. unc thread series oval pt setscrew 1/4 20 thread quantity per inch headless (setscrew) head style right-hand
- NIIN
- 016122539
- NIIN Date
- 10/05/12
- Schedule B
- Name Code
- 06672
- FIIG
- A003B0
- QUP
- Historical Price
- $0.50 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 Army
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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)
- Metal hardware
- NMFC (national motor freight code)
- 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
- UFC (universal freight code)
- 48950
Similar by Design Other setscrews with similar characteristics
Nothing similar to this part number was found in our inventory
20399 / SetscrewWhat is the formal definition of this item?
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. a locking feature may be incorporated in the design of the head or threads.
