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Assembled Washe Self-locking Nut

Model / MPN: F12N7699-820 | NSN: 5310-00-004-5119
ITAR Registered seal

A nut on which has been assembled a nonremovable washer. An integral feature is incorporated for locking on the threads of a mating member.

Product Details
NATO Stock Number
5310-00-004-5119
Sold in multiples of
50 EA
DEMIL
NO
Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Washer Outside Diameter
Between 0.895 inches and 0.925 inches
Counterbore Diameter
0.604 inches nut and 0.614 inches nut
Overall Height
Between 0.536 inches and 0.576 inches
Nut Style
Flat with turned back edge
Nut Counterbore Depth
0.281 inches nut and 0.301 inches nut
Width Across Flats
Between 0.741 inches and 0.752 inches
Tempurature Rating
250.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
20
Thread Size
0.500 inches
Bearing Surface Finish
125.0 microinches
Material
Aluminum alloy 2024 washer or aluminum alloy 7075 washer
Material
Plastic nylon locking insert
Material
Steel comp 1137 nut or steel comp 11l37 nut or steel comp 8740 nut
Material Specification
Ams 5024 assn standard 1st material response nut or ams 5020 assn standard 2nd material response nut or ams 6322 assn standard 3rd material response nut or ams 6323 assn standard 3rd material response nut or ams 6325 assn standard 3rd material response nut or ams 6327 assn standard 3rd material response nut or ams 6358 assn standard 3rd material response nut
Material Specification
Qq-a-225/6, t4 federal specification 1st material response washer or qq-a-250/13, t6 federal specification 2nd material response washer
Surface Treatment
Chromate washer
Surface Treatment
Cadmium nut and chromate nut
Surface Treatment Specification
Mil-c-5541 military specification single treatment response washer
Surface Treatment Specification
Qq-p-416, type 2, class 2 federal specification single treatment response nut
F12N7699 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE5E716TA304 Locking, As Nut, Self 5235 EA 06/06/2016
SPE5EM16TA656 Locking, As Nut, Self 6298 EA 08/10/2016
SPE5E718T0271 Locking, As Nut, Self 3360 EA 10/13/2017
SPE5E719T1275 Locking, As Nut, Self 5013 EA 11/06/2018
SPE5E719T4600 Locking, As Nut, Self 8244 EA 01/22/2019
SPE5E719T053U Locking, As Nut, Self 8244 EA 06/17/2019
SPE5E719T086S Locking, As Nut, Self 4496 EA 07/01/2019
SPE5E719T214W Locking, As Nut, Self 8183 EA 09/10/2019
SPE5E720T4312 Locking, As Nut, Self 4828 EA 02/10/2020
SPE5E020U0236 Locking, As Nut, Self 985 EA 04/08/2020

Pricing and Availability

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F12N7699-820 Cross Reference
  • NE8235-8
  • MS21224-8
  • MS21224-8
  • NE8235-8