| Item Name | Screw Machine |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-989-9956 (009899956) |
| NCB Code | USA (00) |
| Manufacturer | British Standards Institution, Martin Baker Aircraft Co Ltd |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.500 INCHES MINIMUM AND 0.540 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.240 INCHES MINIMUM |
| AASK | HEAD STYLE | BUTTON |
| AASL | HEAD DIAMETER | 0.425 INCHES MINIMUM AND 0.441 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CYAU | SCREW MATERIAL | STEEL |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | BS S94 ASSN STD SINGLE MATERIAL RESPONSE OR BS S95 ASSN STD SINGLE MATERIAL RESPONSE OR BS S114 ASSN STD SINGLE MATERIAL RESPONSE OR BS S116 ASSN STD SINGLE MATERIAL RESPONSE OR BS S117 ASSN STD SINGLE MATERIAL RESPONSE |
| CYBA | SCREW SURFACE TREATMENT | CADMIUM |
| CYBE | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DTD 904 FSCM K4787 MFR REF SINGLE TREATMENT RESPONSE |
| THSD | THREAD SERIES DESIGNATOR | UNF |
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| 5340-01-631-5368 (5340016315368) | 5330-01-297-3590 (5330012973590) | 5360-00-245-2131 (5360002452131) | 5365-01-571-1663 (5365015711663) | |
| 5342-01-255-3551 (5342012553551) | 5330-01-556-4440 (5330015564440) | 5330-01-613-3472 (5330016133472) | 5342-01-259-3873 (5342012593873) | |
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