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Datasheet. 6643057-003 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 style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
hexagon
0.320in. and 0.337in. ⁓11/32"
The national stock number or the identification information of the end equipment for which the item is a part.
mrap - cougar CAT1 A2
The shortest straight line between flats,perpendicular to the height.
0.5510in. and 0.5625in. ⁓37/64"
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.
16
A designation that is used for the purpose of general identification of the thread.
0.375in. ⁓3/8"
Indicates the type of bearing surface.
chamfered or washer faced
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.
nut, plain, hexagon
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel comp 302 or steel comp 303 or steel comp 304 or steel comp 316
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.
QQ-P-35 fed spec single treatment response
Answers.
1HD
Steel comp 302 or steel comp 303 or steel comp 304 or steel comp 316
16
Right-hand
2b
Schedule B number: 7318160000
nmfc 093486
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 5310-00-913-8881 NUT,PLAIN,HEXAGON
Used on mrap - cougar cat1 a2. passivate surface treated nut, plain, hexagon 16 thread quantity per inch right-hand 2b thread class
- NIIN
- 009138881
- NIIN Date
- 01/01/60
- Schedule B
- 7318160000
- Name Code
- 01857
- FIIG
- A021A0
- Item Weight
- 1.600lbs
- Item Dimensions
- --
- QUP
- 1
- Historical Price
- $58.75 HD
- 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. | 7237702P3 | Cage D9182 |
| 2. | 863015-2700 | Cage D9182 |
| 3. | G421085-8 | Cage D9182 |
| 4. | MS-F-51972-3 | Cage D9182 |
| 5. | MS16203-3 | Cage D9182 |
| 6. | MS51971C3 | Cage D9182 |
| 7. | A3013143-1 | Cage 80063 |
| 8. | MS51971-3 | Cage 96906 |
| 9. | 722 0150 000 PIECE 159 | Cage 04579 |
| 10. | 544-0109-080 | Cage 04579 |
| 11. | 544-0109-080 | Cage 10941 |
| 12. | 501-7368091 ITEM NO 38 | Cage 53711 |
| 13. | 0428-22 | Cage 56232 |
| 14. | 803-6397269 PC187 | Cage 53711 |
| 15. | 3/8-16UNC-2B, G R 316 | Cage D9182 |
| 16. | 2035478-022 | Cage D9182 |
| 17. | 4912541-02 | Cage 03956 |
| 18. | 2100-0223-001 | Cage 06032 |
| 19. | TIP01582 | Cage 97403 |
| 20. | 0740844 | Cage S3002 |
| 21. | HN-2012 | Cage 94223 |
| 22. | 125-4510928-41 | Cage 51563 |
| 23. | 205-4510947-42 | Cage 51563 |
| 24. | MS51971-3 | Cage 80205 |
| 25. | 203MS052P013 | Cage 1FH08 |
| 26. | 203MS052P013 | Cage 3B150 |
| 27. | 4912541-02 | Cage 90536 |
| 28. | 62799012 | Cage H0632 |
| 29. | 13218E0320-293 | Cage 97403 |
| 30. | 13218E0320 | Cage 97403 |
| 31. | 859279-00 | Cage 32345 |
| 32. | 5310009138881 | Cage SCY13 |
Major End Users Countries and entities
- - office of The Secretary of Transportation
- - National Aeronautics And Space Administration
- - National Aeronautics And Space Administration
- - National Aeronautics And Space Administration
- - National Aeronautics And Space Administration
- - Department of The Army
- - Department of The Navy
- - Department of The Air Force
- - National Security Agency
- - U.s. Marine Corps
- - U.s. Coast Guard
- - National Weather Service
- - Defense Threat Reduction Agency
- - Austria
- - Lithuania
- - Poland
- - Bulgaria
- - Brazil
- - Spain
- - Israel
- - Singapore
- - Morocco
- - Thailand
- - Australia
- - Belgium
- - Canada
- - New Zealand
- - France
- - Germany
- - Republic of Korea
- - United Kingdom
- - Netherlands
- - Portugal
- - Italy
- - Denmark
- - Greece
- - Norway
- - Turkey
Availability for 6643057-003 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 nuts with similar characteristics
Nothing similar to this part number was found in our inventory
6643057-003 / Nut,plain,hexagonWhat is the formal definition of this item?
A nut, flat on top and bottom having 6 flat sides. for items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. see also locknut, tube fitting. for items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
