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Datasheet. HS4103-8B-2 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.250in. ⁓1/4"
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.
0.410in. ⁓27/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
hexagon
The national stock number or the identification information of the end equipment for which the item is a part.
apache attack helicopter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.1640in. (UTS #8)
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
32
The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
1700 pounds per square inch
The stress at which a material exhibits a specified limiting deviation from the proportionality of stress or strain.
1400 pounds per square inch
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
screw, captive
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.
material screw alloy steel 8740 per ams 6322 or equivalent, sleeve cres 304 per AMS-QQ-S-763; heat treat screw harness rc 38-41, sleeve none; finish screw cadmium plate per AMS-QQ-P-416, type ii, class 2, sleeve cadmium plate per AMS-QQ-P-416, type ii, class 2; thread per MIL-S-8879; grip thickness 0.063-0.125 inch
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unjc
Answers.
Unjc
32
Hexagon
0.250 inches
3a
FSC 5305 ⁓ Screws
NSN 5305-01-506-6574 SCREW,PANEL FASTENER
Used on apache attack helicopter. unjc thread series material screw alloy steel 8740 per ams 6322 or equivalent, sleeve cres 304 per ams-qq-s-763; heat treat screw harness rc 38-41, sleeve none; finish screw cadmium plate per ams-qq-p-416, type ii, class 2, sleeve cadmium plate per ams-qq-p-416, type ii, class 2; thread per mil-s-8879; grip thickness 0.063-0.125 inch screw, captive 32 thread quantity per inch hexagon head style 0.250" thread length 3a thread class
- NIIN
- 015066574
- NIIN Date
- 04/04/03
- Schedule B
- Name Code
- 19665
- FIIG
- A003B0
- 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
- - United Kingdom
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HS4103-8B-2 / Screw,panel fastenerWhat is the formal definition of this item?
A headed, threaded fastening device with special square threads, which is designed to be attached to a panel by means of a retaining washer. the screw fastener is used in conjunction with a speed nut to facilitate fastening two items.
