6646-720

View detailed technical data, stock status, and sourcing information for: 6646-720

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6646-720
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-927-7845
Item Name Code
29730
Assigment Date
08/24/1966 (59 years ago)

A nut of cylindrical or partly cylindrical cross-section with integral threads perpendicular to the axial centerline. Ends may be flat or flanged. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, round.

3b thread class, soluble lubricant lubrication, 0.705 inches maximum washer outside diameter, right-hand thread direction, prevailing torque all metal design locking feature

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3b
Thread Direction
right-hand
Locking Feature
prevailing torque all metal design
Washer Outside Diameter
0.705 inches maximum
Lubrication
soluble lubricant
Overall Height
0.383 inches maximum
Nut Style
hexagon
Width Across Flats
0.490 inches minimum and 0.502 inches maximum
Temp Rating
450.0 fahrenheit nominal
Thread Series
unf
Thread Quantity Per Inch
20
Nominal Thread Size
0.438 inches
Material
steel overall
Surface Treatment
cadmium and chromate overall

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
6646-720 Extended Washer Self-Locking Nut
C2950-14 Extended Washer Self-Locking Nut
H530-7 Extended Washer Self-Locking Nut
KFN530-7 Extended Washer Self-Locking Nut
LH8314-070 Extended Washer Self-Locking Nut
VN332-070 Extended Washer Self-Locking Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-00-927-7845?
The FSCG of the NSN 5310-00-927-7845 is 5310
Does the NSN 5310-00-927-7845 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-927-7845 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5310-00-927-7845 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-927-7845 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5310-00-927-7845 was assigned to the Federal Catalog?
It was assigned 59 years ago, on Wed, Aug 24, 1966

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