| Item Name | Screw Shoulder |
| INC Code | 22846 |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-855-1970 (008551970) |
| NCB Code | USA (00) |
| Manufacturer | Allison Transmission Inc, Rolls Royce Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.813 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| AASY | DISTANCE FROM CENTERLINE TO FLAT | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.890 INCHES NOMINAL FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.190 INCHES MINIMUM AND 0.250 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| AHYM | NOMINAL THREAD DIAMETER | 0.870 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CQBC | MINIMUM TENSILE STRENGTH | 236000 POUNDS PER SQUARE INCH |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | UNDERCUT BENEATH HEAD 0.025 IN. RADIUS; DIA IS 0.189 IN.; THE GRIP LENGTH 0.250 IN. TO FULL THREADS |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNS |
| Relevant Components for NSN - 5305-00-855-1970, 5305008551970 | ||||
| 5305-01-550-7160 (5305015507160) | 5305-00-817-7604 (5305008177604) | 5305-01-576-5750 (5305015765750) | 5305-01-571-8125 (5305015718125) | |
| 5305-01-102-9332 (5305011029332) | 5305-01-663-8969 (5305016638969) | 5305-01-501-5086 (5305015015086) | 5305-00-837-3323 (5305008373323) | |
| 5305-01-226-0794 (5305012260794) | 5305-01-364-9897 (5305013649897) | 5305-00-592-9787 (5305005929787) | 5305-00-699-6718 (5305006996718) | |
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