Plates to fit 1, 2 and 3 compartment boxes are all 100 mm wide<br><br>4 compartment plates are 75 mm wide<br><br>Non-standard sockets have a round earth pin<br><br>Due to overall depth, RCD sockets and wave type data plates will NOT fit in the flush floor and shallow flush floor ranges (Cat. Nos. FFO/AFS).<br><br>When using with underfloor duct systems (Cat.
No. AFU) the outlet box must be raised by 8 mm from the lowest point to allow for wiring This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-271-6120, indicating validated use in U.S. government and defense logistics supply chains.
| material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| outside_diameter | 0.493 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN |
| center_hole_diameter | 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN |
| cross-sectional_height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| NSN | 5305-00-271-6120 |
| COUNTERSINK ANGLE | 71.0 DEGREES MINIMUM AND 73.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| FASTENER LENGTH | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| THREAD DIRECTION | RIGHT-HAND |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-637,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-639,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE |
| THREAD QUANTITY PER INCH | 36 |
| HEAD DIAMETER | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.188 INCHES MINIMUM IN |
| THREAD CLASS | 2A A |
| THREAD SERIES DESIGNATOR | UNS |