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Datasheet. HW51550-4 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
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.
prevailing torque all metal design
0.460in.
The distance measured in a straight line from the bottom to the top of an item.
0.280in.
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
hexagon
The national stock number or the identification information of the end equipment for which the item is a part.
C-130J hercules aircraft
The shortest straight line between flats,perpendicular to the height.
0.305in. and 0.313in. ⁓21/64"
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
unjf
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
28
A designation that is used for the purpose of general identification of the thread.
0.250in. ⁓1/4"
The name assigned to the item by the government agency or commercial organization controlling the design of the item.
nut - 6 point, captive washer, SELF-Locking
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.
upper threaded portion formed out of round to provide self locking action
The chemical compound or mechanical mixture properties of which the item is fabricated.
iron alloy 660 nut
The chemical compound or mechanical mixture properties of which the item is fabricated.
iron alloy 660 washer
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
AMS5525 assn std single material response washer
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
AMS5732 assn std 1st material response nut or AMS5737 assn std 2nd 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.
passivate 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.
passivate washer
Answers.
Iron alloy 660 washer
Iron alloy 660 nut
28
Right-hand
3b
Schedule B number: 7318160000
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 5310-01-522-3353 NUT,SELF-LOCKING,EXTENDED WASHER
Used on c-130j hercules aircraft. passivate washer surface treated upper threaded portion formed out of round to provide self locking action nut - 6 point, captive washer, self-locking 28 thread quantity per inch right-hand 3b thread class
- NIIN
- 015223353
- NIIN Date
- 07/27/04
- Schedule B
- 7318160000
- Name Code
- 29730
- FIIG
- A021A0
- 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
Major End Users Countries and entities
- - Australia
- - Canada
- - United Kingdom
Major End Items End use applications
- - C-130j hercules aircraft
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HW51550-4 / Nut,self-locking,extended washerWhat is the formal definition of this item?
A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. an integral feature is incorporated for locking on the threads of a mating member.
