| Item Name | Screw Cap Hexagon Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-273-1499 (012731499) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com, Federal Specifications, Military Standards Corp |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| B1821BH031F425D | national aerospace standards com | screw cap hexagon head | 80205 | RFQ |
| FF-S-85 | federal specifications | screw cap hexagon head | 81348 | RFQ |
| MS18153-47 | military standards corp | screw cap hexagon head | 96906 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.864 INCHES MINIMUM AND 1.052 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 4.156 INCHES MINIMUM AND 4.250 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.060 INCHES MINIMUM AND 0.068 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| ASXK | HOLE QUANTITY | 1 |
| BQDM | HOLE TYPE | DRILLED |
| CBBL | FEATURES PROVIDED | FINISHED HEAD |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQBC | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| CRHC | HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA354,GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633,TYPE 2 ASSN STD ALL TREATMENT RESPONSES OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Components Related to NSN - 5305-01-273-1499, 5305012731499 | ||||
| 5330-01-317-6323 (5330013176323) | 5325-12-153-6230 (5325121536230) | 5330-01-457-9536 (5330014579536) | 5330-01-292-0190 (5330012920190) | |
| 5306-00-385-6716 (5306003856716) | 5330-01-596-0550 (5330015960550) | 5310-01-263-9122 (5310012639122) | 5365-00-685-7933 (5365006857933) | |
| 5330-01-284-5222 (5330012845222) | 5315-01-078-6855 (5315010786855) | 5325-00-373-0965 (5325003730965) | 5305-12-329-9677 (5305123299677) | |
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