We appreciate your interest in our selection of parts that fall under the NSN 5305-01-121-2689. Below, top-requested part numbers like NAS720B8-4, and others are presented alongside their manufacturer for your perusal. In order to receive pricing options on any featured NSN 5305-01-121-2689, simply click on the “RFQ” button next to it and complete the quote request form you are directed to. Be sure to include as many details as you can about your requirements and restrictions alike so our team can best formulate ideal fulfillment options for your consideration.
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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) | 01-121-2689 (011212689) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NAS720B8-4 | national aerospace standards com | screw assembled washer | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.202 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.218 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| AASK | HEAD STYLE | PAN NO. 2 |
| AASL | HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
| AAVW | WASHER QUANTITY | 2 |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| AHYM | NOMINAL THREAD DIAMETER | 0.164 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 | 0.293 INCHES MAXIMUM |
| CTDQ | SECONDARY WASHER OUTSIDE DIAMETER | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM |
| CTHW | PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| CTJJ | PRIMARY WASHER MATERIAL THICKNESS | 0.040 INCHES MINIMUM |
| CWBW | SECONDARY WASHER MATERIAL THICKNESS | 0.013 INCHES MINIMUM AND 0.019 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 | UNC |
| ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS720 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Relevant Components for NSN - 5305-01-121-2689, 5305011212689 | ||||
| 5330-01-297-7434 (5330012977434) | 5330-01-609-2242 (5330016092242) | 5340-00-721-7489 (5340007217489) | 5330-01-180-9293 (5330011809293) | |
| 5310-01-642-5928 (5310016425928) | 5305-01-353-5790 (5305013535790) | 5365-01-649-4056 (5365016494056) | 5307-00-238-6488 (5307002386488) | |
| 5315-01-253-3597 (5315012533597) | 5310-12-340-6073 (5310123406073) | 5340-01-705-7046 (5340017057046) | 5310-01-488-2206 (5310014882206) | |
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