AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Lag |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-402-5749 (004025749) |
| NCB Code | USA (00) |
| Manufacturer | Federal Specifications, Military Standards Corp, Hillman Group Inc, General Services Administration Inc, Bolt Depot Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| FF-B-561 | federal specifications | screw lag | RFQ |
| MS16992-508 | military standards corp | screw lag | RFQ |
| 230024 | hillman group inc | screw lag | RFQ |
| ANSI B18.2.1 | general services administration inc | screw lag | RFQ |
| FF-B-561 TY1ST1GRB | general services administration inc | screw lag | RFQ |
| 1051 | bolt depot inc | screw lag | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASB | FASTENER LENGTH | 3.500 INCHES NOMINAL |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.188 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.237 INCHES MINIMUM AND 0.260 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.094 INCHES MINIMUM FIRST SHOULDER |
| CQBC | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 60.0 ROCKWELL B MINIMUM OVERALL |
| CRGF | NONMACHINE THREAD STYLE | GIMLET POINT (TYPE A,AB OR BA) |
| CTYF | NONMACHINE NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A153-60 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5305-00-402-5749, 5305004025749 | ||||
| 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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