BACS21ED12W
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A stud, turnlock fastener over which may be assembled an eyelet, turnlock fastener. Stud(s) without cam slots or cam lead threads are provided with a crosspin or eared nut for locking with the mating receptacle, turnlock fastener. May be spring loaded. For like items having a threaded fastener, see screw assembly, panel or screw, panel fastener.
flat countersunk wing turnlock stud head style, 0.753 inches minimum and 0.768 inches maximum distance from engaging member to largest bearing surface of head, stud assembly stud assembly style, 0.341 inches minimum and 0.348 inches maximum eyelet outside diameter, 0.850 inches minimum and 0.890 inches maximum head length
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Head Length
- 0.850 inches minimum and 0.890 inches maximum
- Turnlock Stud Head Style
- flat countersunk wing
- Stud Assembly Style
- stud assembly
- Distance From Engaging Member To Largest Bearing Surface Of Head
- 0.753 inches minimum and 0.768 inches maximum
- Eyelet Outside Diameter
- 0.341 inches minimum and 0.348 inches maximum
- Eyelet Length
- 0.502 inches nominal
- Material Accommodated Thickness
- 0.381 inches minimum and 0.410 inches maximum
- Material
- steel comp 1009 or steel comp 1050 or steel comp 1112 eyelet
- Material
- steel comp 1009 head
- Material
- steel comp 4037 stud
- Material
- steel ejector spring
- Material
- steel pin
- Material Document And Classification
- qq-w-470 fed spec single material response ejector spring
- Material Document And Classification
- qq-w-470 fed spec single material response pin
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 2 fed spec all treatment responses 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 |
|---|---|
| 1142007-12 | Turnlock Fastener Stud Assembly |
| 4002-12W | Turnlock Fastener Stud Assembly |
| BACS21ED12W | Turnlock Fastener Stud Assembly |
| BACS21X12W | Turnlock Fastener Stud Assembly |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5325-00-290-3816?
Does the NSN 5325-00-290-3816 have a Schedule B code assigned?
Does NSN 5325-00-290-3816 require demilitarization?
Does NSN 5325-00-290-3816 contain precious materials?
Does NSN 5325-00-290-3816 contain hazardous materials?
When the NSN 5325-00-290-3816 was assigned to the Federal Catalog?
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Pricing
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