| Item Name | Bolt Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 01-520-3431 (015203431) |
| NCB Code | USA (01) |
| Manufacturer | Aeronautical Standards Group |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | Thread Class | 3A |
| AATB | Width Between Flats | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| THSD | Thread Series Designator | UNF |
| ANEE | Grip Length | 2.172 INCHES MINIMUM AND 2.204 INCHES MAXIMUM |
| AASK | Head Style | HEXAGON |
| AASA | Thread Length | 0.468 INCHES NOMINAL |
| AAJF | Thread Direction | RIGHT-HAND |
| ZZZK | Specification/Standard Data | 88044-AN174 GOVERNMENT STANDARD |
| AASB | Fastener Length | 2.640 INCHES MINIMUM AND 2.687 INCHES MAXIMUM |
| AASU | Head Height | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
| CMLP | Thread Quantity Per Inch | 28 |
| AHYM | Nominal Thread Diameter | 0.250 INCHES |
| AAUR | Grip Diameter | 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |
| MDCL | Material Document And Classification | MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATT | Material | STEEL COMP 431 OVERALL |
| MRC | Decoded Requirement | Clear Text Reply |
| Relevant Components for NSN - 5306-01-520-3431, 5306015203431 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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