| Item Name | Screw Cap Socket Head |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-983-6661 (009836661) |
| NCB Code | USA (00) |
| Manufacturer | Safety Socket Llc, Usm Corp, Eca Etablissement Central Des, Defense Reduction Agency, Robert Fulton Company, Boeing Company The, Inspektorat Wsparcia Sil Zbrojnych, Crescent Manufacturing Company, Sps Technologies Inc, Military Standards Corp, Rdm Technology Bv |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 3M991-4-6 | safety socket llc | screw cap socket head | RFQ |
| 3M991-4-6 | usm corp | screw cap socket head | RFQ |
| 5305009836661 | eca etablissement central des | screw cap socket head | RFQ |
| 870572-00 | defense reduction agency | screw cap socket head | RFQ |
| AJA01-C06 | robert fulton company | screw cap socket head | RFQ |
| 3M991-4-6 | boeing company the | screw cap socket head | RFQ |
| 5305PL0946181 | inspektorat wsparcia sil zbrojnych | screw cap socket head | RFQ |
| 3M991-4-6 | crescent manufacturing company | screw cap socket head | RFQ |
| 3M991-4-6 | sps technologies inc | screw cap socket head | RFQ |
| MS16998-44 | military standards corp | screw cap socket head | RFQ |
| XX002-0279 | rdm technology bv | screw cap socket head | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.425 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 0.785 INCHES MINIMUM AND 0.815 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ASDB | WIDTH ACROSS FLATS | 0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| CQHQ | MINIMUM YIELD STRENGTH | 130000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| 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 - 5305-00-983-6661, 5305009836661 | ||||
| 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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