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 5305-01-389-7981 (5305013897981). 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: | 5305013897981 | 
| Manufacturers | National Aerospace Standards Com | 
| Item Name | Screw Cap Socket Head | 
| INC Code | 16282 | 
| Federal Supply Group (FSG) | 53 Hardware and Abrasives | 
| Federal Supply Class (FSC) | 5305 Screws | 
| National Item Identification Number (NIIN) | 01-389-7981 (013897981) | 
| NCB Code | USA (01) | 
| Part No | Manufacturer | Item Name | CAGE Code | Type | Status | Availability | RFQ | |
|---|---|---|---|---|---|---|---|---|
| NAS1351-4LE32P | national aerospace standards com | screw cap socket head | 80205 | c | a | Avl | RFQ |  | 
| MRC | Criteria | Characteristic | 
|---|---|---|
| AASK | Head Style | FLAT CHAMFER | 
| CQBC | Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH | 
| CMLP | Thread Quantity Per Inch | 28 | 
| MATT | Material | STEEL UNS K03104 FASTENER | 
| THSD | Thread Series Designator | UNRF | 
| AASL | Head Diameter | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | 
| SFTT | Surface Treatment | CADMIUM FASTENER AND CHROMATE FASTENER | 
| ABQZ | Internal Drive Style | HEXAGON | 
| STDC | Surface Treatment Document And Classification | QQ-P-416 TY 2 CL 2 FED SPEC ALL TREATMENT RESPONSES FASTENER | 
| AHYM | Nominal Thread Diameter | 0.250 INCHES | 
| AAJF | Thread Direction | RIGHT-HAND | 
| AASB | Fastener Length | 1.960 INCHES MINIMUM AND 2.000 INCHES MAXIMUM | 
| AASA | Thread Length | 1.000 INCHES MINIMUM | 
| AAUM | Locking Feature | PATCH THREADS OR PELLET THREADS OR STRIP THREADS | 
| ZZZK | Specification/Standard Data | 80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | 
| ASDB | Width Across Flats | 0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM | 
| MDCL | Material Document And Classification | ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | 
| CQFM | Hardness Rating | 37.0 ROCKWELL C MINIMUM FASTENER AND 43.0 ROCKWELL C MAXIMUM FASTENER | 
| MATT | Material | PLASTIC POLYAMIDE LOCKING FEATURE | 
| MRC | Decoded Requirement | Clear Text Reply | 
| AASU | Head Height | 0.244 INCHES MINIMUM AND 0.250 INCHES 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.
Request for Quote