| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-973-1048 (009731048) |
| NCB Code | USA (00) |
| Manufacturer | Howe Machine And Tool Corp, Alco Machine Co Inc, W W Williams Logistics L L C, Tens Machine Company Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| A51M42524-11 | howe machine and tool corp | screw shoulder | RFQ |
| A51M42524-11 | alco machine co inc | screw shoulder | RFQ |
| A51M42524-11 | w w williams logistics l l c | screw shoulder | RFQ |
| A51M42524-11 | tens machine company inc | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.312 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.923 INCHES MINIMUM AND 1.943 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.500 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.100 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.281 INCHES MINIMUM FIRST SHOULDER AND 0.282 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.611 INCHES MINIMUM FIRST SHOULDER AND 1.631 INCHES MAXIMUM FIRST SHOULDER |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.071 INCHES MINIMUM FIRST HOLE AND 0.076 INCHES MAXIMUM FIRST HOLE |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQFM | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM OVERALL AND 49.0 ROCKWELL C MAXIMUM OVERALL |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.823 INCHES MINIMUM FIRST HOLE AND 1.843 INCHES MAXIMUM FIRST HOLE |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | G-1010 FSCM 26512 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM GRIP AND CHROMIUM GRIP |
| SFTT | SURFACE TREATMENT | CADMIUM THREADS |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837 TY 2 CL 1 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL AND QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| TEST | TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS,BROCHURES,ETC.,THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS,INDUSTRY DIRECTORIES,AND SIMILAR TRADE PUBLICATIONS,REFLECTIN |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-00-973-1048, 5305009731048 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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