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 5305-01-148-2651 (5305011482651). 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: | 5305011482651 | 
| Manufacturers | Roller Bearing Company Of America , Westinghouse Electric Corp | 
| Item Name | Screw Shoulder | 
| INC Code | 22846 | 
| Federal Supply Group (FSG) | 53 Hardware and Abrasives | 
| Federal Supply Class (FSC) | 5305 Screws | 
| National Item Identification Number (NIIN) | 01-148-2651 (011482651) | 
| NCB Code | USA (01) | 
| Part No | Manufacturer | Item Name | CAGE Code | Type | Status | Availability | RFQ | |
|---|---|---|---|---|---|---|---|---|
| 4431 | roller bearing company of america | screw shoulder | 00141 | a | a | Avl | RFQ |  | 
| 906E033 ITEM 23 | westinghouse electric corp | screw shoulder | 94259 | a | a | Avl | RFQ |  | 
| 906E033-23 | westinghouse electric corp | screw shoulder | 94259 | a | a | Avl | RFQ |  | 
| 938A813-15 | westinghouse electric corp | screw shoulder | 94259 | a | a | Avl | RFQ |  | 
| CAT-4431 | westinghouse electric corp | screw shoulder | 94259 | a | a | Avl | RFQ |  | 
| MRC | Criteria | Characteristic | 
|---|---|---|
| AAJD | THREAD CLASS | 2A | 
| AAJF | THREAD DIRECTION | RIGHT-HAND | 
| AASA | THREAD LENGTH | 0.250 INCHES NOMINAL | 
| AASB | FASTENER LENGTH | 0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM | 
| AASK | HEAD STYLE | FLAT CHAMFER | 
| AASL | HEAD DIAMETER | 0.375 INCHES NOMINAL | 
| AASU | HEAD HEIGHT | 0.188 INCHES NOMINAL | 
| AATN | SHOULDER DIAMETER | 0.249 INCHES MINIMUM FIRST SHOULDER AND 0.250 INCHES MAXIMUM FIRST SHOULDER | 
| AATX | SHOULDER LENGTH | 0.500 INCHES MINIMUM FIRST SHOULDER AND 0.502 INCHES MAXIMUM FIRST SHOULDER | 
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON | 
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES | 
| ASDB | WIDTH ACROSS FLATS | 0.125 INCHES NOMINAL | 
| CMLP | THREAD QUANTITY PER INCH | 32 | 
| CRTL | CRITICALITY CODE JUSTIFICATION | ZZZY | 
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER | 
| MATT | MATERIAL | STEEL COMP 303 OVERALL | 
| SFTT | SURFACE TREATMENT | CHROMIUM OVERALL | 
| SPCL | SPECIAL TEST FEATURES | SPECIAL QUALITY CONTROL TESTING | 
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-C-320 CLASS 2B FED SPEC SINGLE TREATMENT RESPONSE OVERALL | 
| TEST | TEST DATA DOCUMENT | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS,BROCHURES,ETC.,THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS,INDUSTRY DIRECTORIES,AND SIMILAR TRADE PUBLICATIONS,REFLECTI | 
| THSD | THREAD SERIES DESIGNATOR | UNF | 
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION | 
| 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) | 
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