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) | 01-628-1658 (016281658) |
| NCB Code | USA (01) |
| Manufacturer | Huck International Inc, Sps Technologies Inc, Northrop Grumman Systems Corporation, Heartland Precision Fasteners In, Pilgrim Screw Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| BM19069-06-559 | huck international inc | screw shoulder | RFQ |
| PBF1285-06-559 | sps technologies inc | screw shoulder | RFQ |
| AIC551C-06-559 | sps technologies inc | screw shoulder | RFQ |
| GS551C06-559 | northrop grumman systems corporation | screw shoulder | RFQ |
| HP6551C06-559 | heartland precision fasteners in | screw shoulder | RFQ |
| BM19060-06-559 | huck international inc | screw shoulder | RFQ |
| PIL551C-06-559 | pilgrim screw corporation | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.255 INCHES MINIMUM AND 0.285 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.695 INCHES MINIMUM AND 0.725 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.223 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.141 INCHES MINIMUM AND 0.142 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.480 INCHES NOMINAL FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.138 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CQBC | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL B MAXIMUM OVERALL |
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| HUES | COLOR | RED TOP OF HEAD |
| MATT | MATERIAL | STEEL COMP 4037 OR STEEL COMP 8740 OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY 2, CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-01-628-1658, 5305016281658 | ||||
| 5365-00-981-3580 (5365009813580) | 5306-01-663-0372 (5306016630372) | 5330-00-259-1415 (5330002591415) | 5340-00-140-8006 (5340001408006) | |
| 5310-01-055-6080 (5310010556080) | 5340-01-571-9066 (5340015719066) | 5360-01-528-5575 (5360015285575) | 5340-01-254-4525 (5340012544525) | |
| 5310-01-456-0920 (5310014560920) | 5331-01-311-6975 (5331013116975) | 5330-00-147-6676 (5330001476676) | 5365-01-201-0770 (5365012010770) | |
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