| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-487-6866 (014876866) |
| NCB Code | USA (01) |
| Manufacturer | Valley Todeco Inc, Saturn Fasteners Inc, Heartland Precision Fasteners In, Fastener Innovation Technology Inc, Huck International Inc, Boeing Company The, Sps Technologies Inc, Hi Shear Corporation, Alcoa Global Fasteners Inc, West Coast Aerospace Inc, Twist Tite Mfg Inc, Ionics Ultrapure Water Corp, Camcar Llc, Swift Electric Welder Co, Macjewel Tool Development Inc, Linread Canada Ltd |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| ST3M557-4-12 | valley todeco inc | screw close tolerance | RFQ |
| ST3M557-4-12 | saturn fasteners inc | screw close tolerance | RFQ |
| ST3M557-4-12 | heartland precision fasteners in | screw close tolerance | RFQ |
| ST3M557-4-12 | fastener innovation technology inc | screw close tolerance | RFQ |
| HT4027-4-12 | huck international inc | screw close tolerance | RFQ |
| ST3M557-4-12 | boeing company the | screw close tolerance | RFQ |
| HT4027-4-12 | sps technologies inc | screw close tolerance | RFQ |
| HT4027-4-12 | hi shear corporation | screw close tolerance | RFQ |
| HT4027-4-12 | alcoa global fasteners inc | screw close tolerance | RFQ |
| WC4027-4-12 | west coast aerospace inc | screw close tolerance | RFQ |
| ST3M557-4-12 | twist tite mfg inc | screw close tolerance | RFQ |
| ST3M557-4-12 | ionics ultrapure water corp | screw close tolerance | RFQ |
| ST3M557-4-12 | camcar llc | screw close tolerance | RFQ |
| ST3M557-4-12 | swift electric welder co | screw close tolerance | RFQ |
| ST3M557-4-12 | sps technologies inc | screw close tolerance | RFQ |
| 11923-4-12 | macjewel tool development inc | screw close tolerance | RFQ |
| ST3M557-4-12 | linread canada ltd | screw close tolerance | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASA | THREAD LENGTH | 0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| AASK | HEAD STYLE | OVAL COUNTERSUNK |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 23-118 FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAJD | THREAD CLASS | 3A |
| AASB | FASTENER LENGTH | 0.703 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
| Relevant Components for NSN - 5305-01-487-6866, 5305014876866 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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