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| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-197-3997 (011973997) |
| NCB Code | USA (01) |
| Manufacturer | Military Standards Corp, National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| MS21125B408 | military standards corp | screw close tolerance | 96906 | RFQ |
| MS21125B408 | national aerospace standards com | screw close tolerance | 80205 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.277 INCHES MINIMUM AND 0.328 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.918 INCHES MINIMUM AND 0.938 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.477 INCHES MINIMUM AND 0.492 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
| AAUM | LOCKING FEATURE | DETENT BALL GRIP |
| AAUR | GRIP DIAMETER | 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ANEE | GRIP LENGTH | 0.500 INCHES MINIMUM AND 0.516 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQBC | MINIMUM TENSILE STRENGTH | 63000 POUNDS PER SQUARE INCH |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.823 INCHES MINIMUM FIRST HOLE AND 0.843 INCHES MAXIMUM FIRST HOLE |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
| MATT | MATERIAL | STEEL COMP 631 SPRING OR STEEL COMP 302 SPRING |
| MATT | MATERIAL | STEEL COMP 632 FASTENER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A580 COND. A ASSN STD SINGLE MATERIAL RESPONSE SPRING |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-197-3997, 5305011973997 | ||||
| 5340-01-713-6026 (5340017136026) | 5305-01-195-7948 (5305011957948) | 5325-01-351-7887 (5325013517887) | 5310-01-514-1501 (5310015141501) | |
| 5365-00-817-9355 (5365008179355) | 5310-14-370-1516 (5310143701516) | 5340-01-266-6437 (5340012666437) | 5355-01-545-3134 (5355015453134) | |
| 5330-01-089-1589 (5330010891589) | 5305-01-540-4248 (5305015404248) | 5340-01-364-2423 (5340013642423) | 5340-01-648-4808 (5340016484808) | |
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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