| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-434-5486 (004345486) |
| NCB Code | USA (00) |
| Manufacturer | Sps Technologies Inc, Alcoa Global Fasteners Inc, Boeing Company The, Hi Shear Corporation, Satair Usa Inc, Lisi Aerospace Canada Corp, Alcoa Fastening Systems Ltd |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 3M379-4-12 | sps technologies inc | screw close tolerance | 56878 | RFQ |
| 3M379-4-12 | alcoa global fasteners inc | screw close tolerance | 92215 | RFQ |
| 3M379-4-12 | boeing company the | screw close tolerance | 76301 | RFQ |
| 69197-4-12 | sps technologies inc | screw close tolerance | 56878 | RFQ |
| HT187-4-12 | hi shear corporation | screw close tolerance | 73197 | RFQ |
| HT187-4-12 | satair usa inc | screw close tolerance | r1120 | RFQ |
| HT187-4-12 | lisi aerospace canada corp | screw close tolerance | l4528 | RFQ |
| HT187-4-12 | alcoa fastening systems ltd | screw close tolerance | c4293 | RFQ |
| HT8076-4-12 | alcoa fastening systems ltd | screw close tolerance | c4293 | RFQ |
| HT8076-4-12 | alcoa global fasteners inc | screw close tolerance | 92215 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.316 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.051 INCHES MINIMUM AND 1.081 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ANEE | GRIP LENGTH | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.948 INCHES NOMINAL FIRST HOLE |
| CSYM | SURFACE FINISH | 125.0 MICROINCHES OVERALL |
| CSYM | SURFACE FINISH | 125.0 MICROINCHES TOP OF HEAD |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
| FEAT | SPECIAL FEATURES | CONICAL SURFACE OF HEAD 32 MICORINCHES |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NAS 498 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM 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 |
| Components Related to NSN - 5305-00-434-5486, 5305004345486 | ||||
| 5305-01-222-7769 (5305012227769) | 5365-01-044-5936 (5365010445936) | 5331-01-276-7349 (5331012767349) | 5340-00-536-5281 (5340005365281) | |
| 5365-00-550-5464 (5365005505464) | 5305-01-209-8688 (5305012098688) | 5340-01-624-2067 (5340016242067) | 5340-01-214-3681 (5340012143681) | |
| 5330-01-166-9520 (5330011669520) | 5306-00-528-5534 (5306005285534) | 5307-00-307-2340 (5307003072340) | 5340-01-382-3018 (5340013823018) | |
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