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) | 00-177-5578 (001775578) |
| NCB Code | USA (00) |
| Manufacturer | General Services Administration Inc, Federal Specifications, Hillman Group Inc, Military Standards Corp, Bolt Depot Inc, American National Standards |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| FF-B-561 TY1ST1GRB | general services administration inc | screw lag | RFQ |
| FF-B-561 | federal specifications | screw lag | RFQ |
| 230063 | hillman group inc | screw lag | RFQ |
| MS16992-528 | military standards corp | screw lag | RFQ |
| 1065 | bolt depot inc | screw lag | RFQ |
| ANSI B18.2.1 | american national standards | screw lag | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASB | FASTENER LENGTH | 4.000 INCHES NOMINAL |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.195 INCHES MINIMUM AND 0.235 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.298 INCHES MINIMUM FIRST SHOULDER AND 0.324 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.125 INCHES MINIMUM OVERALL |
| 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 | 0.312 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 - 5305-00-177-5578, 5305001775578 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
Request for Quote