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Datasheet. 3M448N3M20-28 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3b
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 substance designed to provide a reduction of friction between the two surfaces in contact.
dry film lubricant
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
69.940in. ⁓69-61/64"
An overall measurement taken at right angles to the length of an item,in distinction from thickness.
0.416in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
gang channel, self locking
The style designation indicating the configuration that most nearly corresponds to the appearance of the channel.
straight type
The overall distance measured in a straight line from the bottom to the top of the assembly.
0.250in.
2.500in.
The number of nuts provided.
28
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
unf
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
32
A designation that is used for the purpose of general identification of the thread.
0.190in. ⁓13/64"
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.
aluminum alloy 7075 channel
The chemical compound or mechanical mixture properties of which the item is fabricated.
iron alloy 660 nut
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 5525 assn std single material response nut or ams 5732 assn std single material response nut
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.
anodize channel
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 nut
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-A-8625 mil spec single treatment response channel
Answers.
Iron alloy 660 nut
Aluminum alloy 7075 channel
32
0.416 inches maximum
Right-hand
3b
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 5310-01-224-2400 NUT ASSEMBLY,SELF-LOCKING,GANG C
passivate nut surface treated navy special project 32 thread quantity per inch 0.416" overall width 69.940" overall length right-hand 3b thread class
- NIIN
- 012242400
- NIIN Date
- 01/14/86
- Schedule B
- Name Code
- 01864
- FIIG
- A021A0
- Item Weight
- 0.000lbs
- Item Dimensions
- --
- QUP
- Historical Price
- $218.43 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
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- Special Handling
- Other or no special handling required (sh)
- LTL (less than a truck load rating)
- 70.0
- 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)
- Metal hardware
- NMFC (national motor freight code)
- 013540 ALUM NUTS
- UFC (universal freight code)
- 05680
Similar by Design Other nut assemblys with similar characteristics
Nothing similar to this part number was found in our inventory
3M448N3M20-28 / Nut assembly,self-locking,gang cWhat is the formal definition of this item?
An item composed of a specially designed channel and a series of nuts having integral self-locking features assembled in predetermined spacing.
