AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-387-0539 (013870539) |
| NCB Code | USA (01) |
| Manufacturer | Military Specifications, Electric Boat Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MIL-DTL-1222 | military specifications | screw cap socket head | RFQ |
| 2643-930-53FNA30 | electric boat corporation | screw cap socket head | RFQ |
| MIL-S-1222 | military specifications | screw cap socket head | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A564 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | LUBRICANT FASTENER |
| AASA | THREAD LENGTH | 0.875 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| AAUM | LOCKING FEATURE | PATCH THREADS OR PELLET THREADS OR STRIP THREADS |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| CQBC | MINIMUM TENSILE STRENGTH | 135000 POUNDS PER SQUARE INCH |
| FEAT | SPECIAL FEATURES | AGE HARDEN TO 1075 DEGREES |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A564 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 630 GRADE |
| AASB | FASTENER LENGTH | 1.000 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 28.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| CQHQ | MINIMUM YIELD STRENGTH | 105000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | PLASTIC ACETAL LOCKING FEATURE |
| MATT | MATERIAL | STEEL COMP 630 FASTENER |
| SFTT | SURFACE TREATMENT | LUBRICANT OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-L-24479,FN 45 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-L-24479,FN 45 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-01-387-0539, 5305013870539 | ||||
| 5340-01-131-8536 (5340011318536) | 5306-01-438-9363 (5306014389363) | 5306-00-839-1951 (5306008391951) | 5330-00-854-3797 (5330008543797) | |
| 5330-99-729-7553 (5330997297553) | 5306-01-710-7805 (5306017107805) | 5310-01-125-4124 (5310011254124) | 5315-01-514-6048 (5315015146048) | |
| 5306-00-009-5138 (5306000095138) | 5340-01-575-9010 (5340015759010) | 5305-00-130-4358 (5305001304358) | 5310-01-513-5337 (5310015135337) | |
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