| 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 | ||||
| 5340-01-169-2963 (5340011692963) | 5310-01-158-6265 (5310011586265) | 5315-01-608-8364 (5315016088364) | 5330-01-510-3005 (5330015103005) | |
| 5365-01-446-8973 (5365014468973) | 5340-01-487-3594 (5340014873594) | 5340-01-557-7739 (5340015577739) | 5331-00-625-8831 (5331006258831) | |
| 5306-01-648-2938 (5306016482938) | 5307-01-106-3946 (5307011063946) | 5305-00-050-9241 (5305000509241) | 5360-01-598-3689 (5360015983689) | |
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