We've received your request for CS318642V4-20 (described as Screw Close Toleran), manufactured by Textron Fastening Systems Ltd with CAGE code 93907. This part is registered under NSN 5305-00-487-5261, classified in FSG 53 Hardware and Abrasives / FSC 5305 Screws. Our verification process will confirm traceability through supporting identifiers including NIIN 00-487-5261, NCB code 00 (origin: USA), and INC 29294. Please submit your formal quotation request to proceed.
Thank you for choosing Aerospace Exchange for your CS318642V4-20 requirements. We specialize in authenticated aerospace components, offering both NSN-tracked military parts and commercial equivalents, all validated through our rigorous sourcing protocols.
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| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASB | FASTENER LENGTH | 1.612 INCHES MINIMUM AND 1.642 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| AAJD | THREAD CLASS | 3A |
| AASA | THREAD LENGTH | 0.352 INCHES MINIMUM AND 0.402 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AAUR | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| ANEE | GRIP LENGTH | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM |
| CRSQ | COUNTERSINK ANGLE | 59.75 DEGREES MINIMUM AND 60.25 DEGREES MAXIMUM |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
| MATT | MATERIAL | TITANIUM ALLOY UNS R54520 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASL | HEAD DIAMETER | 0.412 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NAS 621, 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| End Use : 12300 | Finished metal shapes |
|---|---|
| Schedule B : 8109900000 (NAICS 331491) | Zirconium and articles thereof nesoi |
| SITC : 69987 | Zirconium, wrought, and articles of zirconium, n.E.S. |
| ADPE | Represents items with no adp components |
|---|---|
| CRITL | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| HMIC | N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials. |
| PMIC | U - Precious metal content is unknown |
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