| Item Name | Bolt Ribbed Shoulde |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 01-026-5777 (010265777) |
| NCB Code | USA (01) |
| Manufacturer | Military Standards Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 1.380 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 2.300 INCHES MINIMUM AND 2.310 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.520 INCHES MINIMUM FIRST SHOULDER AND 0.525 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.775 INCHES MINIMUM FIRST SHOULDER AND 0.785 INCHES MAXIMUM FIRST SHOULDER |
| AAVP | RIB MAJOR DIAMETER | 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM |
| AAVQ | RIB LENGTH | 0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM |
| AAVR | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| AAVU | RIB QUANTITY | 35 |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQFM | HARDNESS RATING | 322.0 BRINELL STANDARD MINIMUM OVERALL AND 363.0 BRINELL STANDARD MAXIMUM OVERALL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP 1335 OVERALL OR STEEL COMP 1340 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 4135 OVERALL OR STEEL COMP 8637 OVERALL OR STEEL COMP 8640 OVERALL OR STEEL COMP 8740 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A547 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL AND CHROMATE OVERALL OR CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,CL 2 FED SPEC 1ST TREATMENT RESPONSE OVERALL AND QQ-Z-325,CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL OR QQ-P-416,CL 2 FED SPEC 3RD TREATMENT RESPONSE OVERALL AND QQ-P-416,CL 2 FED SPEC 4TH TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5306-01-026-5777, 5306010265777 | ||||
| 5340-01-128-5602 (5340011285602) | 5306-01-598-2806 (5306015982806) | 5306-00-660-2761 (5306006602761) | 5310-01-632-4360 (5310016324360) | |
| 5365-00-003-1724 (5365000031724) | 5305-01-246-0089 (5305012460089) | 5310-00-052-8840 (5310000528840) | 5310-00-016-5834 (5310000165834) | |
| 5330-00-477-2508 (5330004772508) | 5310-00-424-2018 (5310004242018) | 5325-00-349-3151 (5325003493151) | 5365-01-613-0724 (5365016130724) | |
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.
Request for Quote
