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| Item Name | Screw Assembled Washer |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-042-0991 (000420991) |
| NCB Code | USA (00) |
| Manufacturer | Saginaw Products Corporation, Fruehauf Corp, American Standard Inc, Miller Trailers Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.369 INCHES MINIMUM AND 0.469 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| AASK | HEAD STYLE | ROUND |
| AASL | HEAD DIAMETER | 0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
| AAVW | WASHER QUANTITY | 1 |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CSPG | PRIMARY WASHER OUTSIDE DIAMETER | 0.460 INCHES MINIMUM AND 0.475 INCHES MAXIMUM |
| CTHW | PRIMARY WASHER STYLE | FLAT EXTERNAL TEETH |
| CTJJ | PRIMARY WASHER MATERIAL THICKNESS | 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 1050 PRIMARY WASHER |
| MATT | MATERIAL | STEEL FASTENER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66,1010-1020 FED STD SINGLE MATERIAL RESPONSE FASTENER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| SFTT | SURFACE TREATMENT | CADMIUM FASTENER |
| SFTT | SURFACE TREATMENT | ZINC PRIMARY WASHER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-00-042-0991, 5305000420991 | ||||
| 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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