| Item Name | Screw Machine |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-217-1971 (002171971) |
| NCB Code | USA (00) |
| Manufacturer | Ametek Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.218 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.218 INCHES NOMINAL |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.125 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AHYM | NOMINAL THREAD DIAMETER | 0.086 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 64 |
| CYAU | SCREW MATERIAL | STEEL COMP 416 |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE |
| FEAT | SPECIAL FEATURES | SHARP POINTED CONE CENTERED ON TOP OF HEAD 3/64 IN. DIA. AT BASE OF CONE AND 3/64 IN. HG. OF CONE,RELIEF UNDER HEAD 0.068 PLUS 0.000 MIN. 0.003 IN. DIA. AND 0.020 PROM 0.003 IN. LG |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-00-217-1971, 5305002171971 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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