| Item Name | Bolt Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-193-9603 (001939603) |
| NCB Code | USA (00) |
| Manufacturer | British Standards Institution |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.537 INCHES MINIMUM AND 0.690 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 4.050 INCHES MINIMUM AND 4.090 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.493 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.3118 INCHES MINIMUM AND 0.3123 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| ANEE | GRIP LENGTH | 3.400 INCHES MINIMUM AND 3.513 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| FEAT | SPECIAL FEATURES | IDENTIFICATION DISK ON TOP OF HEAD 0.490 IN. DIA,0.030 IN. DEPTH |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | A.111,FSCM K7766 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Components Related to NSN - 5306-00-193-9603, 5306001939603 | ||||
| 5340-01-631-5368 (5340016315368) | 5330-01-297-3590 (5330012973590) | 5360-00-245-2131 (5360002452131) | 5365-01-571-1663 (5365015711663) | |
| 5342-01-255-3551 (5342012553551) | 5330-01-556-4440 (5330015564440) | 5330-01-613-3472 (5330016133472) | 5342-01-259-3873 (5342012593873) | |
| 5340-00-575-1873 (5340005751873) | 5310-00-151-9032 (5310001519032) | 5315-01-622-0550 (5315016220550) | 5340-01-429-0419 (5340014290419) | |
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