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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) | 01-121-1648 (011211648) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NAS720B10-6 | national aerospace standards com | screw assembled washer | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.327 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.343 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AASK | HEAD STYLE | PAN NO. 2 |
| AASL | HEAD DIAMETER | 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.099 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| AAVW | WASHER QUANTITY | 2 |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CQBC | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| CRGX | SECONDARY WASHER RELATIONSHIP TO PRIMARY WASHER | NOT IDENTICAL |
| CRYT | SECONDARY WASHER STYLE | FLAT |
| CSPG | PRIMARY WASHER OUTSIDE DIAMETER | 0.334 INCHES MAXIMUM |
| CTDQ | SECONDARY WASHER OUTSIDE DIAMETER | 0.338 INCHES MINIMUM AND 0.348 INCHES MAXIMUM |
| CTHW | PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| CTJJ | PRIMARY WASHER MATERIAL THICKNESS | 0.047 INCHES MINIMUM |
| CWBW | SECONDARY WASHER MATERIAL THICKNESS | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| MATT | MATERIAL | COPPER ALLOY 230 FASTENER OR COPPER ALLOY 240 FASTENER OR COPPER ALLOY 260 FASTENER OR COPPER ALLOY 268 FASTENER OR COPPER ALLOY 342 FASTENER OR COPPER ALLOY 353 FASTENER OR COPPER ALLOY 360 FASTENER OR COPPER ALLOY 377 FASTENER |
| MATT | MATERIAL | COPPER ALLOY 260 SECONDARY WASHER OR COPPER ALLOY 268 SECONDARY WASHER |
| MATT | MATERIAL | COPPER ALLOY 510 PRIMARY WASHER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-P-613 FED SPEC SINGLE MATERIAL RESPONSE SECONDARY WASHER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-P-750,COMP A FED SPEC SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| SFTT | SURFACE TREATMENT | TIN OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS720 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Relevant Components for NSN - 5305-01-121-1648, 5305011211648 | ||||
| 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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