| Item Name | Insert Screw Thread |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5325 Fastening Devices |
| National Item Identification Number (NIIN) | 00-638-8640 (006388640) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Mount Lok Products Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2B |
| ABKU | FLANGE THICKNESS | 0.063 INCHES NOMINAL |
| ABRY | LENGTH | 0.313 INCHES NOMINAL |
| ASDB | WIDTH ACROSS FLATS | 0.344 INCHES NOMINAL |
| BZGJ | INSERT SIZE | 0.217 IN. MIN,0.221 IN. MAX |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CQJX | NOMINAL THREAD SIZE | 0.164 INCHES |
| FEAT | SPECIAL FEATURES | 2 RADIAL NOTCHES IN FLANGE PERIPHERY 180 DEG APART,THD COUNTERBORED OPPOSITE FLANGE 0.165 IN. MIN,0.174 IN. MAX DIA,0.094 IN. DEPTH |
| MATT | MATERIAL | ALUMINUM ALLOY OVERALL |
| SFTT | SURFACE TREATMENT | ANODIZE OVERALL |
| STYL | STYLE DESIGNATOR | FLANGE |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Components Related to NSN - 5325-00-638-8640, 5325006388640 | ||||
| 5305-01-222-3196 (5305012223196) | 5340-01-420-2904 (5340014202904) | 5305-01-506-5038 (5305015065038) | 5307-01-093-0586 (5307010930586) | |
| 5306-01-455-2212 (5306014552212) | 5320-01-425-9724 (5320014259724) | 5330-01-429-5246 (5330014295246) | 5340-01-359-3660 (5340013593660) | |
| 5330-01-524-1191 (5330015241191) | 5320-00-395-6445 (5320003956445) | 5310-01-510-7415 (5310015107415) | 5310-01-104-8190 (5310011048190) | |
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