| Item Name | Bolt Externally Relieved Body |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-637-0388 (006370388) |
| NCB Code | USA (00) |
| Manufacturer | American Telephone And Telegraph Co, At And T Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.688 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 1.750 INCHES NOMINAL |
| AASK | HEAD STYLE | SQUARE EXTENDED WASHER |
| AASU | HEAD HEIGHT | 0.750 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.497 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| AATC | EXTENDED WASHER DIAMETER | 0.750 INCHES NOMINAL |
| AATD | EXTENDED WASHER THICKNESS | 0.125 INCHES NOMINAL |
| AAWC | FIRST DIAMETER FROM HEAD | 0.266 INCHES NOMINAL |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 1.062 INCHES NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| MATT | MATERIAL | STEEL COMP 1117 OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL OR PHOSPHATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 3064 FSCM 54567 MFR REF 1ST TREATMENT RESPONSE OVERALL OR 3066 FSCM 54567 MFR REF 2ND TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5306-00-637-0388, 5306006370388 | ||||
| 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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