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Datasheet. CHT4020-3-4A 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.
0.130in. and 0.197in. ⁓13/64"
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.
0.390in. and 0.437in. ⁓7/16"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flat countersunk
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.3765in. and 0.3813in.
The length of a straight line which passes through the center of the grip,and terminates at the circumference.
0.1890in. and 0.1895in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
HIGH-Torque
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.190in. (UTS #10)
A measurement of the longest dimension of the grip,in distinction from width.
0.240in. and 0.260in.
Those features,not otherwise specified,which may be required for proper functioning of the item.
cetyl alcohol lubricant and o ring
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.
125000 pounds per square inch
The included angle of the countersink.
99.0 degrees and 101.0 degrees
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
32.0 microinches bearing surface of HEAD32.0 microinches GRIP32.0 microinches threads
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel corrosion resisting
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
23-112, ty c cagec 76301 mfr ref single material response
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.
passivate
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
QQ-P-35 fed spec 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.
unjf
Answers.
1EA
Unjf
Steel corrosion resisting
32
0.240 inches minimum and 0.260 inches maximum
Flat countersunk
0.130 inches minimum and 0.197 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 5305-01-338-7306 SCREW,CLOSE TOLERANCE
unjf thread series passivate surface treated 32 thread quantity per inch 0.240" grip length flat countersunk head style 0.130" thread length right-hand 3a thread class
- NIIN
- 013387306
- NIIN Date
- 05/10/91
- Schedule B
- 7318152000
- Name Code
- 29294
- FIIG
- A003B0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $57.50 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
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | ST3M652C3-4A | Cage 76301 |
| 2. | HT4020-3-4A | Cage 06950 |
| 3. | HT4020-3-4A | Cage 92215 |
| 4. | HT4020-3-4A | Cage 73197 |
| 5. | HT4020-3-4A | Cage 80539 |
| 6. | HT4020-3-4A | Cage 17446 |
| 7. | ST3M652C3-4A | Cage 58998 |
| 8. | WC4020-3-4A | Cage 60516 |
| 9. | HT4020-3-4A | Cage L4528 |
| 10. | HT4020-3-4A | Cage 97928 |
Major End Users Countries and entities
- - Department of The Navy
- - Department of The Air Force
Availability for CHT4020-3-4A A member of our team will provide you with a price and availability quote
Request a Quote »Shipping Information
- 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 screws with similar characteristics
Nothing similar to this part number was found in our inventory
CHT4020-3-4A / 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.
