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) | 00-151-8660 (001518660) |
| NCB Code | USA (00) |
| Manufacturer | Bf Goodrich Aerospace, Northrop Grumman Systems Corporation, Aero Mechanical Fastening Systems Inc, Huck International Inc, Sps Technologies Inc, Heartland Precision Fasteners In |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 2R1465-13 | bf goodrich aerospace | screw shoulder | RFQ |
| GS551P4-921 | northrop grumman systems corporation | screw shoulder | RFQ |
| 2R1863-921 | aero mechanical fastening systems inc | screw shoulder | RFQ |
| BM19070-4-921 | huck international inc | screw shoulder | RFQ |
| GS551P-4921 | aero mechanical fastening systems inc | screw shoulder | RFQ |
| BM19070-921 | huck international inc | screw shoulder | RFQ |
| PBF1286-921 | sps technologies inc | screw shoulder | RFQ |
| HP6551P4-921 | heartland precision fasteners in | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.406 INCHES MINIMUM AND 0.436 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.266 INCHES MINIMUM AND 1.296 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.357 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.254 INCHES MINIMUM FIRST SHOULDER AND 0.256 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.796 INCHES MINIMUM FIRST SHOULDER AND 0.826 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | HALF OF TOP SURFACE OF HEAD PAINTED ORANGE |
| MATT | MATERIAL | STEEL COMP 4037 OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-00-151-8660, 5305001518660 | ||||
| 5305-00-825-1285 (5305008251285) | 5315-01-177-1845 (5315011771845) | 5340-01-536-0624 (5340015360624) | 5330-01-398-3824 (5330013983824) | |
| 5365-00-602-2520 (5365006022520) | 5340-01-658-6711 (5340016586711) | 5306-00-488-7520 (5306004887520) | 5310-00-443-4905 (5310004434905) | |
| 5305-00-579-4230 (5305005794230) | 5306-01-488-3599 (5306014883599) | 5340-01-429-0378 (5340014290378) | 5305-01-208-9074 (5305012089074) | |
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