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3b
RIGHT-Hand
prevailing torque all metal design
soluble lubricant
hexagon
0.320in. ⁓21/64"
w/s:support equipment, C-5 aircraft; support equip, C-17A aircraft; support equipment, T-38 aircraft; support equipment, T-37 aircraft; engine, aircraft T-56; support equipment, OV-10A aircraft
0.430in. and 0.439in. ⁓29/64"
unjf
28
0.250in. ⁓1/4"
chamfered
steel
cadmium
1EA
Steel
28
Right-hand
3b
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).
Used on w/s:support equipment, c-5 aircraft; support equip, c-17a aircraft; support equipment, t-38 aircraft; support equipment, t-37 aircraft; engine, aircraft t-56; support equipment, ov-10a aircraft. cadmium surface treated 28 thread quantity per inch right-hand 3b thread class
1. | 21FC428 | Cage 56878 |
2. | 21FC428 | Cage 56878 |
Nothing similar to this part number was found in our inventory
A nut having a flat bottom and 6 sides. an integral feature is incorporated for locking on the threads of a mating member. excludes nut (1), self-locking, cap.