We appreciate your interest in American National Standards part number B18.3.1M, which is currently ready for procurement here on Prompt Aerospace. For your reference, part number B18.3.1M is listed with the NSN 5305-01-646-1866 and description “Screw Cap Socket Head.” If this is the item you are seeking and you would like to request a quote for your comparisons, simply complete the form below with information like your desired quantity, budget, and anticipated fulfillment timeframe. We regularly respond to requests within 15 minutes of receiving them, using the details we are offered to curate the most ideal purchasing options.
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If you want to explore other items produced by American National Standards under the CAGE Code 80204 or that similarly fall under the FSC 5305 Screws, keep in mind that since we list everything with relevant information, you can easily locate related part numbers using our search engine or catalogs. We also excel at tracking down parts with long lead times or that are generally hard to find, meaning that we can serve you even if you do not see exactly what you need on our website. With all of this being said, we are ready to help you source any of the NSN 5305-01-646-1866 parts and Screw Cap Socket Head items your operations require, so request a quote today.
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 5305-01-646-1866 Item PartTypeName: SCREW,CAP,SOCKET HEAD | 5305 | 016461866 | 0 | N | A | |
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | A | A | 0 | |||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| B1831BH120160L | 5 | 2 | 3 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 36.0 MILLIMETERS MINIMUM AND 44.8 MILLIMETERS MAXIMUM |
| AASB | FASTENER LENGTH | 160.0 MILLIMETERS NOMINAL |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 17.6 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MAXIMUM |
| AASU | HEAD HEIGHT | 11.7 MILLIMETERS MINIMUM AND 12.0 MILLIMETERS MAXIMUM |
| AAUM | LOCKING FEATURE | STRIP OR PELLET OR PATCH THREADS |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AGAV | III END ITEM IDENTIFICATION | ENGINE, DIESEL |
| AHYM | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| ASDB | WIDTH ACROSS FLATS | 12.03 MILLIMETERS MINIMUM AND 12.14 MILLIMETERS MAXIMUM |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.75 |
| CQWR | EXTERNAL THREAD TOLERANCE CLASS | 4G6G |
| CXCY | III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW CAP HEXAGON SOCKET HEAD (METRIC) |
| MATT | MATERIAL | STEEL PROPERTY CLASS 12.9 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | ISO M |
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