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Datasheet. HT4020-6-18A 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.
0.641in. ⁓41/64"
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.
1.750in. and 1.797in. ⁓1-51/64"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
flat countersunk undercut
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.756in. and 0.760in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.115in. and 0.117in. ⁓1/8"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
HIGH-Torque
The national stock number or the identification information of the end equipment for which the item is a part.
fighter AIRCRAFT-First (F18 e/f)
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.375in. ⁓3/8"
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
24
The included angle of the countersink.
99.0 degrees and 101.0 degrees
The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.
agav
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
HI-Torque bolt, 100 degree flush sealing head close tolerance
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp XM-13
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 5629 assn std 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.
Unjf
Steel comp xm-13
24
Flat countersunk undercut
0.641 inches
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 5305-01-477-5625 SCREW,CLOSE TOLERANCE
Used on fighter aircraft-first (f18 e/f). unjf thread series passivate surface treated hi-torque bolt, 100 degree flush sealing head close tolerance 24 thread quantity per inch flat countersunk undercut head style 0.641" thread length right-hand 3a thread class
- NIIN
- 014775625
- NIIN Date
- 08/14/00
- Schedule B
- 7318152000
- Name Code
- 29294
- FIIG
- A003B0
- QUP
- Historical Price
- $45.00 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. | ST3M652C6-18A | Cage 76301 |
| 2. | 11925C6-18A | Cage 59563 |
| 3. | ST3M652C6-18A | Cage 06710 |
| 4. | ST3M652C6-18A | Cage 0ZC92 |
| 5. | ST3M652C6-18A | Cage 58998 |
| 6. | ST3M652C6-18A | Cage 1VSL7 |
| 7. | WC4020-6-18A | Cage 60516 |
Major End Users Countries and entities
- - Department of The Navy
Availability for HT4020-6-18A 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)
- Rating variable
- 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 screws with similar characteristics
Nothing similar to this part number was found in our inventory
HT4020-6-18A / 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.
