We appreciate your interest in Bf Goodrich Aerospace part number B1990-7-4, which is currently ready for procurement here on Prompt Aerospace. For your reference, part number B1990-7-4 is listed with the NSN 5305-00-250-2144 and description “Screw Shoulder.” 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 Bf Goodrich Aerospace under the CAGE Code 03481 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 5305-00-250-2144 parts and Screw Shoulder items your operations require, so request a quote today.
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 5305-00-250-2144 Item PartTypeName: SCREW,SHOULDER | 5305 | 002502144 | 0 | N | ||
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | U | |||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| B1990-7-4 | 6 | 9 | 5 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.291 INCHES MINIMUM AND 0.351 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.891 INCHES MINIMUM AND 0.921 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.276 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.193 INCHES MINIMUM FIRST SHOULDER AND 0.195 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.530 INCHES MINIMUM FIRST SHOULDER AND 0.560 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | TOP OF HEAD RED |
| MATT | MATERIAL | STEEL COMP 4037 OVERALL OR STEEL COMP 8740 OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| SFTT | SURFACE TREATMENT | PAINT TOP OF HEAD |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
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