| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-515-7044 (005157044) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Aero Mechanical Fastening Systems Inc, Bf Goodrich Aerospace, Pilgrim Screw Corporation, Sps Technologies Inc, Goodrich Corporation, Heartland Precision Fasteners In, Fastener Specialty Inc, Huck International Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| GS551C3-368 | northrop grumman systems corporation | screw shoulder | RFQ |
| GS551C3-368 | aero mechanical fastening systems inc | screw shoulder | RFQ |
| GS551C3-368 | bf goodrich aerospace | screw shoulder | RFQ |
| PIL551C3-368 | pilgrim screw corporation | screw shoulder | RFQ |
| PBF1285-3-368 | sps technologies inc | screw shoulder | RFQ |
| B1990-2 | goodrich corporation | screw shoulder | RFQ |
| AIC551C3-368 | sps technologies inc | screw shoulder | RFQ |
| HP6551C3-368 | heartland precision fasteners in | screw shoulder | RFQ |
| GS551C3-368 | sps technologies inc | screw shoulder | RFQ |
| S100C3-368 | fastener specialty inc | screw shoulder | RFQ |
| BM19069-3-368 | huck international inc | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.285 INCHES MINIMUM AND 0.345 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.266 INCHES MINIMUM AND 0.286 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.193 INCHES MINIMUM FIRST SHOULDER AND 0.195 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.255 INCHES MINIMUM FIRST SHOULDER AND 0.285 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | HEAD PAINTED RED |
| MATT | MATERIAL | STEEL COMP 4037 OVERALL OR STEEL COMP 8740 OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| SFTT | SURFACE TREATMENT | PAINT TOP OF HEAD |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-00-515-7044, 5305005157044 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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