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Datasheet. R1/4-20 X .375 4601 18-8 CRES specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a
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.
0.375in. ⁓3/8"
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.
0.375in. ⁓3/8"
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
watertight
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.488in. and 0.513in.
A measurement from the bottom to the top of the head,in distinction from depth.
0.162in. and 0.175in. ⁓3/16"
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
cross recess type 1
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.250, in. ⁓1/4"
Those features,not otherwise specified,which may be required for proper functioning of the item.
o ring
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.
navy special project
The chemical compound or mechanical mixture properties of which the screw 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 screw material.
astm A493, 18-8 assn std single material response
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.
O-Ring material is buna n
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.
1EA
Unc
20
Watertight
0.375 inches
Right-hand
2a
Schedule B number: 7318152000
nmfc 133300
Bolts and bolts and their nuts or washers exported in the same shipment
FSC 5305 ⁓ Screws
NSN 5305-01-522-3516 SCREW,MACHINE
unc thread series o-ring material is buna n navy special project 20 thread quantity per inch watertight head style 0.375" thread length right-hand 2a thread class
- NIIN
- 015223516
- NIIN Date
- 07/28/04
- Schedule B
- 7318152000
- Name Code
- 06657
- FIIG
- A500D0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $0.13 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. | SEELSKREWR1/4-20X3/8 4601 18-8 | Cage 97539 |
Major End Users Countries and entities
- - Department of The Navy
Availability for R1/4-20 X .375 4601 18-8 CRES 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)
- Engineer and material handling equipment, test/tool sets and equipment
- NMFC (national motor freight code)
- 133300 MACHINERY/MACHINES NOI
- UFC (universal freight code)
- 63220
Similar by Design Other screws with similar characteristics
Nothing similar to this part number was found in our inventory
R1/4-20 X .375 4601 18-8 CRES / Screw,machineWhat is the formal definition of this item?
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
