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Datasheet. NCS4-2-18 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2a nut thread
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 nut thread
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.547in. nut thread and 0.577in. nut thread ⁓37/64"
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
0.197in. and 0.201in.
A measurement of the longest dimension of a head,in distinction from width.
0.053in. and 0.063in.
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.
SELF-Clinching head
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
0.600in. and 0.640in. ⁓41/64"
The distance across the flats.
0.250in.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
40 nut thread
A designation that is used for the purpose of general identification of the thread.
0.112in. nut thread ⁓1/8"
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 item is fabricated.
steel comp 305
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
QQ-S-764 fed spec 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.
MIL-F-14072, E300 mil spec single treatment response
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
SELF-Locking
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 nut thread
Answers.
Unc nut thread
Self-locking
Steel comp 305
40 nut thread
0.547 inches minimum nut thread and 0.577 inches maximum nut thread
Right-hand nut thread
2a nut thread
FSC 5307 ⁓ Studs
NSN 5307-00-138-6465 STUD,SELF-LOCKING
unc nut thread thread series self-locking passivate surface treated navy special project 40 nut thread thread quantity per inch 0.600" overall length 0.547" nut thread thread length right-hand nut thread 2a nut thread thread class
- NIIN
- 001386465
- NIIN Date
- 08/18/71
- Schedule B
- Name Code
- 27783
- FIIG
- A051A0
- QUP
- Historical Price
- $0.63 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Metal content unknown
- 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. | 107329-32 | Cage 37695 |
Major End Users Countries and entities
- - Department of The Navy
Availability for NCS4-2-18 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)
- 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 studs with similar characteristics
Nothing similar to this part number was found in our inventory
NCS4-2-18 / Stud,self-lockingWhat is the formal definition of this item?
A headed fastener threaded externally on a portion or on the full length of the shank. the head has projections on the underside or periphery, or is otherwise designed to be mechanically pressed and embedded in a metallic panel, or the like. it is securely locked in position by the displaced metal. for items that require locking rings, see bolt, self-locking and stud, locked in. excludes insert, screw thread.
