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Serving our customers with quality and safety first.
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Datasheet. R440-1/2 specification
Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a
Thread Direction
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.
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
Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.500in. ⁓1/2"
Fastener Length
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.
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.
0.500in. ⁓1/2"
Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
pan no. 2
Head Diameter
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.238in.
Head Height
A measurement from the bottom to the top of the head,in distinction from depth.
A measurement from the bottom to the top of the head,in distinction from depth.
0.080in. ⁓3/32"
Internal Drive Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
cross recess type iii
End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.
The national stock number or the identification information of the end equipment for which the item is a part.
2355015626152
Nominal Thread Diameter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
0.112in. (UTS #4)
Features Provided
Those features,not otherwise specified,which may be required for proper functioning of the item.
Those features,not otherwise specified,which may be required for proper functioning of the item.
o ring
Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
40
Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
sealing screw
Screw Material
The chemical compound or mechanical mixture properties of which the screw is fabricated.
The chemical compound or mechanical mixture properties of which the screw is fabricated.
steel corrosion resisting
Bearing Surface Of Head Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the bearing surface of head is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
The metallic,nonmetallic,and/or chemical properties with which the bearing surface of head is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
passivate
Head Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the head is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
The metallic,nonmetallic,and/or chemical properties with which the head is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
passivate
Screw Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the screw is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
The metallic,nonmetallic,and/or chemical properties with which the screw is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
passivate
Shank Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the shank is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
The metallic,nonmetallic,and/or chemical properties with which the shank is plated,dipped and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
passivate
Special Features
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.
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.
this has an UNDERCUT-Clear hole for an 0-ring to make this an air, water or GAS-Tight seal; the undercut is 0.125in. and 0.129in. ; O-Ring is made of silicone rubber
Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
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.
What class is the thread series?
Unc
What type of screw surface treatment?
Passivate
What is the thread quantity per inch?
40
What is the head style?
Pan no. 2
What is the thread length?
0.500 inches
What is the thread direction?
Right-hand
What is the thread class?
2a
How is this classified for shipping?
Schedule B number: 7318152000
nmfc 133300
Bolts and bolts and their nuts or washers exported in the same shipment
What's the federal classification of R440-1/2?
FSC 5305 ⁓ Screws
NSN 5305-01-602-3044 SCREW,SEALING
Used on 2355015626152. unc thread series this has an undercut-clear hole for an 0-ring to make this an air, water or gas-tight seal; the undercut is 0.125" passivate screw surface treated sealing screw 40 thread quantity per inch pan no. 2 head style 0.500" thread length right-hand 2a thread class
- NIIN
- 016023044
- NIIN Date
- 01/28/12
- Schedule B
- 7318152000
- Name Code
- 77777
- FIIG
- --
- Item Weight
- 0.000lbs
- Item Dimensions
- QUP
- Historical Price
- $7.20 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. | 3113754C1 | Cage 338X5 |
Major End Users Countries and entities
- - Department of The Air Force
- - Department of The Army
Availability for R440-1/2 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
