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Datasheet. NAS1994C4T specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flat countersunk
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
offset cruciform (torque set)
The national stock number or the identification information of the end equipment for which the item is a part.
C-130J
The included angle of the countersink.
99.0 degrees and 101.0 degrees
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
bolt
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unjf
Answers.
1EA
Unjf
Flat countersunk
3a
FSC 5305 ⁓ Screws
NSN 5305-01-600-5925 SCREW,CLOSE TOLERANCE
Used on C-130J. unjf thread series bolt flat countersunk head style 3a thread class
- NIIN
- 016005925
- NIIN Date
- 12/10/11
- Schedule B
- Name Code
- 29294
- FIIG
- A003B0
- QUP
- 1
- Historical Price
- $2.50 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 Air Force
- - Brazil
- - Belgium
- - Canada
- - Denmark
Major End Items End use applications
- - C-130j
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NAS1994C4T / Screw,close toleranceWhat is the formal definition of this item?
A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is designed to be held or driven with an inserted driver. it is not designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads.
