| Item Name | Screw Cap Hexagon Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-421-4294 (014214294) |
| NCB Code | USA (01) |
| Manufacturer | American National Standards |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| B1821AH050C400N | american national standards | screw cap hexagon head | 80204 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| MRC | Decoded Requirement | Clear Text Reply |
| AHYM | Nominal Thread Diameter | 0.500 INCHES |
| AAJF | Thread Direction | RIGHT-HAND |
| AASK | Head Style | HEXAGON |
| AATB | Width Between Flats | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| SFTT | Surface Treatment | CADMIUM OVERALL AND CHROMATE OVERALL |
| THSD | Thread Series Designator | UNC |
| MATT | Material | STEEL OVERALL |
| AAJD | Thread Class | 2A |
| CMLP | Thread Quantity Per Inch | 13 |
| AASA | Thread Length | 1.250 INCHES NOMINAL |
| AASB | Fastener Length | 4.000 INCHES NOMINAL |
| MDCL | Material Document And Classification | ASTM A 354 GR BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AASU | Head Height | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM |
| STDC | Surface Treatment Document And Classification | QQ-P-416, TY2CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5305-01-421-4294, 5305014214294 | ||||
| 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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