| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-283-7455 (002837455) |
| NCB Code | USA (00) |
| Manufacturer | Lisi Aerospace Canada Corp, Fastener Innovation Technology Inc, Boeing Company The, Alcoa Global Fasteners Inc, Hi Shear Corporation, Twist Tite Mfg Inc, West Coast Aerospace Inc, Sps Technologies Inc, Houston Precision Fastener L L C, Huck International Inc, Nimikkeistokeskus Ncb Finland |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| HT271A4-8 | lisi aerospace canada corp | screw close tolerance | RFQ |
| ST3M430V4-8AS | fastener innovation technology inc | screw close tolerance | RFQ |
| ST3M430V4-8AS | boeing company the | screw close tolerance | RFQ |
| HT8137-4-8AS | alcoa global fasteners inc | screw close tolerance | RFQ |
| HT271A4-8 | hi shear corporation | screw close tolerance | RFQ |
| ST3M430V4-8AS | twist tite mfg inc | screw close tolerance | RFQ |
| WC8137-4-8A | west coast aerospace inc | screw close tolerance | RFQ |
| 110179-4-8AS | sps technologies inc | screw close tolerance | RFQ |
| ST3M4 | sps technologies inc | screw close tolerance | RFQ |
| ST3M430V4-8AS | houston precision fastener l l c | screw close tolerance | RFQ |
| BM33024V4-8U | huck international inc | screw close tolerance | RFQ |
| 10125107 | nimikkeistokeskus ncb finland | screw close tolerance | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.952 INCHES MINIMUM AND 0.999 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| AASL | HEAD DIAMETER | 0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.071 INCHES MINIMUM AND 0.073 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ANEE | GRIP LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRSQ | COUNTERSINK ANGLE | 99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
| FEAT | SPECIAL FEATURES | FURNISHED WITH ONE O-RING SEAL |
| MATT | MATERIAL | TITANIUM ALLOY OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NAS621 COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-00-283-7455, 5305002837455 | ||||
| 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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