| Item Name | Nut Self Locking Hexagon |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-568-0756 (015680756) |
| NCB Code | USA (01) |
| Manufacturer | Huntington Ingalls Incorporated, National Instruments Corporation |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 6503-86 ITEM NO 25 | huntington ingalls incorporated | nut self locking hexagon | 43689 | RFQ |
| 501-4457016 ITEM NO 25L1 | national instruments corporation | nut self locking hexagon | 03950 | RFQ |
| 6503-77 ITEM NO 25L1 | national instruments corporation | nut self locking hexagon | 03950 | RFQ |
| 6503-77 ITEM 25 | huntington ingalls incorporated | nut self locking hexagon | 43689 | RFQ |
| 501-4457023 ITEM NO 25L1 | national instruments corporation | nut self locking hexagon | 03950 | RFQ |
| 6503-86 ITEM NO 25L1 | national instruments corporation | nut self locking hexagon | 03950 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| MATT | Material | STEEL CORROSION RESISTING OVERALL |
| MRC | Decoded Requirement | Clear Text Reply |
| FEAT | Special Features | NUT, TWO INCHES -4-1/2 UNC-2B, CRES. |
| ZZZY | Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL 1 ITEMS. CRITICAL ITEM FOR SAFETY AND SUTVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUR VEHICELS AS DIFFERENTIATED BY SPECIAL TEST FEATURES. |
| CRTL | Criticality Code Justification | ZZZY |
| Relevant Components for NSN - 5310-01-568-0756, 5310015680756 | ||||
| 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) | |
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