AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-375-2857 (013752857) |
| NCB Code | USA (01) |
| Manufacturer | Sumatech Inc, Lockheed Martin Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASU | HEAD HEIGHT | 1.000 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.812 INCHES NOMINAL FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 5.000 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | THREADS ON POINTED END 0.250-28UNF-2A: THREAD RELIEF 0.060 IN. LG. SHOULDER OVER POINT 0.433-0.435 IN. DIA.: 1.500 IN. KEYWAY LG 1.120 IN.,; HOLE IN HEAD 0.315-0.321 IN. DIA |
| SFTT | SURFACE TREATMENT | NICKEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 5.780 INCHES NOMINAL |
| AASK | HEAD STYLE | SPADE |
| AASV | HEAD LENGTH | 0.812 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM |
| AATX | SHOULDER LENGTH | 3.940 INCHES NOMINAL FIRST SHOULDER |
| CBBL | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 COND D-1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AAJD | THREAD CLASS | 2A |
| AASB | FASTENER LENGTH | 11.890 INCHES NOMINAL |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL |
| Relevant Components for NSN - 5305-01-375-2857, 5305013752857 | ||||
| 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) | |
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