| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-175-3754 (001753754) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Northrop Grumman Technical Services Inc, Preci Manufacturing Incorporated, Mercer Products And Manufacturing, Caprice Engineering Company Inc, Alco Machine Co Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 14-27028-1 | northrop grumman systems corporation | screw shoulder | RFQ |
| 14-27028-1 | northrop grumman technical services inc | screw shoulder | RFQ |
| 14-27028-1 | preci manufacturing incorporated | screw shoulder | RFQ |
| 14-27028-1 | mercer products and manufacturing | screw shoulder | RFQ |
| 14-27028-1 | caprice engineering company inc | screw shoulder | RFQ |
| 14-27028-1 | alco machine co inc | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AASA | THREAD LENGTH | 0.274 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.765 INCHES MINIMUM AND 1.795 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.885 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.100 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL |
| AATX | SHOULDER LENGTH | 1.420 INCHES NOMINAL FIRST SHOULDER |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.070 INCHES NOMINAL FIRST HOLE |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ASDB | WIDTH ACROSS FLATS | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.650 INCHES NOMINAL FIRST HOLE |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-00-175-3754, 5305001753754 | ||||
| 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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