| Item Name | Screw Machine |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-637-7940 (006377940) |
| NCB Code | USA (00) |
| Manufacturer | Military Specifications, National Aerospace Standards Com |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.367 INCHES MINIMUM AND 0.513 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.891 INCHES MINIMUM AND 1.936 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.452 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CYAU | SCREW MATERIAL | STEEL COMP 8630 |
| CYAW | SCREW MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OR AN-S-9 MIL STD SINGLE MATERIAL RESPONSE |
| CYBA | SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |
| CYBE | SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5305-00-637-7940, 5305006377940 | ||||
| 5325-01-474-4172 (5325014744172) | 5305-00-005-0050 (5305000050050) | 5305-01-081-2450 (5305010812450) | 5360-00-248-8834 (5360002488834) | |
| 5340-01-369-8169 (5340013698169) | 5305-00-899-3578 (5305008993578) | 5330-00-593-8695 (5330005938695) | 5305-01-514-9340 (5305015149340) | |
| 5340-01-702-5703 (5340017025703) | 5360-00-920-9595 (5360009209595) | 5340-01-691-6457 (5340016916457) | 5306-01-269-7435 (5306012697435) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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