ASAP Semiconductor is an industry-leading distributor for shopping for parts by National Stock Number (NSN) data, the items featured within this catalog all falling under NSN 5305-01-443-8385 (5305014438385). Toward the top of this page, you will find several details that pertain to this NSN, allowing you to confirm various aspects of these offerings to ensure accurate procurement. Meanwhile, the part numbers that we have available for purchase can be found below, with Request for Quote (RFQ) links provided alongside each should you wish to make a purchase. Our team is also available by phone or email to support you during the procurement process, so never hesitate to take the first step with us.
| Alternative NSN: | 5305014438385 |
| Manufacturers | National Aerospace Standards Com |
| Item Name | Screw Close Tolerance |
| INC Code | 29294 |
| Federal Supply Group (FSG) | 53 Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-443-8385 (014438385) |
| NCB Code | USA (01) |
| Part No | Manufacturer | Item Name | CAGE Code | Type | Status | Availability | RFQ | |
|---|---|---|---|---|---|---|---|---|
| NAS1581C4T18 | national aerospace standards com | screw close tolerance | 80205 | c | a | Avl | RFQ |
|
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | Head Style | FLAT COUNTERSUNK |
| AHYM | Nominal Thread Diameter | 0.250 INCHES |
| ANEE | Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM |
| CSYM | Surface Finish | 32.0 MICROINCHES THREADS |
| THSD | Thread Series Designator | UNJF |
| CQBC | Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH |
| AASL | Head Diameter | 0.350 INCHES MINIMUM AND 0.399 INCHES MAXIMUM |
| AASA | Thread Length | 0.403 INCHES NOMINAL |
| ABQZ | Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| AAJF | Thread Direction | RIGHT-HAND |
| MDCL | Material Document And Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AASB | Fastener Length | 1.513 INCHES MINIMUM AND 1.543 INCHES MAXIMUM |
| CSYM | Surface Finish | 32.0 MICROINCHES GRIP |
| SFTT | Surface Treatment | PASSIVATE OVERALL |
| MRC | Decoded Requirement | Clear Text Reply |
| MATT | Material | IRON ALLOY 660 OVERALL |
| ZZZK | Specification/Standard Data | 80205-NAS1581 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| AAUR | Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| CMLP | Thread Quantity Per Inch | 28 |
| CRSQ | Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| AAJD | Thread Class | 3A |
| 5325-01-531-6331 (5325015316331) | 5340-01-021-3819 (5340010213819) | 5320-01-163-4012 (5320011634012) | 5331-01-461-7036 (5331014617036) |
| 5310-01-670-9012 (5310016709012) | 5305-01-207-7518 (5305012077518) | 5310-00-546-5643 (5310005465643) | 5330-00-594-5133 (5330005945133) |
| 5330-01-126-8670 (5330011268670) | 5310-01-561-6112 (5310015616112) | 5330-01-119-3684 (5330011193684) | 5340-01-557-0618 (5340015570618) |
We hope that you will visit us again the next time you need board-level components, aviation and aerospace parts, and more. Allow us to serve as your strategic purchasing partner.
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