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Datasheet. 66278-12-SS-12 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
2b
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
The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.
0.212in.
The length of a straight line which passes through the center of a counterbored portion of a hole,and terminates at the circumference.
0.125in. nut
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
clinch
0.375in. ⁓3/8"
The measurement of the enlarged portion adjacent to the threaded portion of a nut,in distinction from height.
0.188in. nut
The shortest straight line between flats,perpendicular to the height.
0.250in. ⁓1/4"
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
unc
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
40
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
70.0 rockwell b
A designation that is used for the purpose of general identification of the thread.
0.112in. ⁓1/8"
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 303
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
Answers.
Steel comp 303
40
Right-hand
2b
Schedule B number: 7318160000
nmfc 093490
Nuts of iron or steel
FSC 5310 ⁓ Nuts and washers
Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.
Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).
NSN 5310-01-272-8329 NUT,PLAIN,CLINCH
passivate surface treated 40 thread quantity per inch right-hand 2b thread class
- NIIN
- 012728329
- NIIN Date
- 02/15/88
- Schedule B
- 7318160000
- Name Code
- 01860
- FIIG
- A021A0
- QUP
- Historical Price
- $4.40 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
Major End Users Countries and entities
- - Department of The Navy
- - Department of The Air Force
Availability for 66278-12-SS-12 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)
- 50.0
- 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)
- 093490 BOLT/NUT/SCREW/CLIPS/FASTENER/ETC
- UFC (universal freight code)
- 50270
Similar by Design Other nuts with similar characteristics
Nothing similar to this part number was found in our inventory
66278-12-SS-12 / Nut,plain,clinchWhat is the formal definition of this item?
A nut having a sleeve portion on its under side, which can be crimped or clinched to hold the item in place when inserted in a hole.
