| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-216-2801 (012162801) |
| NCB Code | USA (01) |
| Manufacturer | The Boeing Company, Military Standards Corp, National Aerospace Standards Com |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| AAUB | HOLE DIAMETER | 0.501 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ABNM | THICKNESS | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM |
| ADAV | OVERALL DIAMETER | 0.940 INCHES MINIMUM AND 0.950 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL OR MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5310-01-216-2801, 5310012162801 | ||||
| 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.
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