| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-802-0574 (008020574) |
| NCB Code | USA (00) |
| Manufacturer | Alcoa Global Fasteners Inc, Hi Shear Corporation, Lisi Aerospace Canada Corp, Monadnock Company The, Northrop Grumman Systems Corporation, Northrop Grumman Technical Services Inc, Sps Technologies Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 51B221-4 | alcoa global fasteners inc | screw close tolerance | 92215 | RFQ |
| 51B221-4 | hi shear corporation | screw close tolerance | 73197 | RFQ |
| 51B221-4 | lisi aerospace canada corp | screw close tolerance | l4528 | RFQ |
| 51B221-4 | monadnock company the | screw close tolerance | 60119 | RFQ |
| 51B221-4 | northrop grumman systems corporation | screw close tolerance | 76823 | RFQ |
| 51B221-4 | northrop grumman technical services inc | screw close tolerance | 0jrc1 | RFQ |
| 51B221-4 | sps technologies inc | screw close tolerance | 80539 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.276 INCHES MINIMUM |
| AASK | HEAD STYLE | MODIFIED PAN |
| AASU | HEAD HEIGHT | 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAJD | THREAD CLASS | 3A |
| AASB | FASTENER LENGTH | 0.511 INCHES MINIMUM AND 0.558 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.361 INCHES MINIMUM AND 0.381 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| ANEE | GRIP LENGTH | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 5TH MATE |
| Components Related to NSN - 5305-00-802-0574, 5305008020574 | ||||
| 5310-01-086-7875 (5310010867875) | 5306-01-626-1829 (5306016261829) | 5365-01-633-9077 (5365016339077) | 5355-00-870-0653 (5355008700653) | |
| 5330-00-143-3535 (5330001433535) | 5330-00-631-8220 (5330006318220) | 5305-01-696-3523 (5305016963523) | 5305-01-275-0515 (5305012750515) | |
| 5331-01-398-8586 (5331013988586) | 5325-01-608-8422 (5325016088422) | 5306-01-646-1547 (5306016461547) | 5360-01-651-5511 (5360016515511) | |
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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