AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-521-9174 (015219174) |
| NCB Code | USA (01) |
| Manufacturer | Houston Precision Fastener L L C, Valley Todeco Inc, Huck International Inc, West Coast Aerospace Inc, Hi Shear Corporation, Heartland Precision Fasteners In, Linread Canada Ltd, Reid Products Inc, Saturn Fasteners Inc, Sps Technologies Inc, Camcar Llc, Boeing Company The, Alcoa Global Fasteners Inc, Twist Tite Mfg Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| ST3M557-5-9 | houston precision fastener l l c | screw close tolerance | RFQ |
| ST3M557-5-9 | valley todeco inc | screw close tolerance | RFQ |
| HT4027-5-9 | huck international inc | screw close tolerance | RFQ |
| ST3M557-5-9 | west coast aerospace inc | screw close tolerance | RFQ |
| ST3M557-5-9 | hi shear corporation | screw close tolerance | RFQ |
| ST3M557-5-9 | heartland precision fasteners in | screw close tolerance | RFQ |
| ST3M557-5-9 | linread canada ltd | screw close tolerance | RFQ |
| 11923-5-9 | reid products inc | screw close tolerance | RFQ |
| ST3M557-5-9 | saturn fasteners inc | screw close tolerance | RFQ |
| HT4027-5-9 | sps technologies inc | screw close tolerance | RFQ |
| ST3M557-5-9 | camcar llc | screw close tolerance | RFQ |
| ST3M557 | boeing company the | screw close tolerance | RFQ |
| HT4027-5-9 | alcoa global fasteners inc | screw close tolerance | RFQ |
| ST3M557-5-9 | sps technologies inc | screw close tolerance | RFQ |
| ST3M557-5-9 | boeing company the | screw close tolerance | RFQ |
| WC4027-5-9 | west coast aerospace inc | screw close tolerance | RFQ |
| HT4027-5-9 | hi shear corporation | screw close tolerance | RFQ |
| ST3M557-5-9 | twist tite mfg inc | screw close tolerance | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| CMLP | Thread Quantity Per Inch | 24 |
| AASK | Head Style | FLAT COUNTERSUNK |
| MRC | Decoded Requirement | Clear Text Reply |
| ABQZ | Internal Drive Style | HIGH-TORQUE |
| SFTT | Surface Treatment | PASSIVATE OVERALL |
| AASB | Fastener Length | 1.078 INCHES MINIMUM AND 1.108 INCHES MAXIMUM |
| ANEE | Grip Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| AASL | Head Diameter | 0.477 INCHES NOMINAL |
| AGAV | End Item Identification | FWD FUSELAGE |
| AASA | Thread Length | 0.531 INCHES NOMINAL |
| MATT | Material | NICKEL ALLOY 718 OVERALL |
| AAJF | Thread Direction | RIGHT-HAND |
| AHYM | Nominal Thread Diameter | 0.312 INCHES |
| THSD | Thread Series Designator | UNJF |
| AAUR | Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM |
| CRSQ | Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| STDC | Surface Treatment Document And Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MDCL | Material Document And Classification | AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AAJD | Thread Class | 3A |
| Relevant Components for NSN - 5305-01-521-9174, 5305015219174 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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