| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-381-3878 (013813878) |
| NCB Code | USA (01) |
| Manufacturer | Bae Systems Land And Armaments Inc, Bae Systems Tactical Vehicle Systems |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| MATT | MATERIAL | STEEL COMP 1009 OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL AND CHROMATE OVERALL |
| AAUB | HOLE DIAMETER | 11.1 MILLIMETERS MINIMUM AND 11.9 MILLIMETERS MAXIMUM |
| ABNM | THICKNESS | 1.0 MILLIMETERS NOMINAL |
| ADAV | OVERALL DIAMETER | 23.6 MILLIMETERS MINIMUM AND 24.4 MILLIMETERS MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A366 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 TYPE 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Components Related to NSN - 5310-01-381-3878, 5310013813878 | ||||
| 5340-01-631-5368 (5340016315368) | 5330-01-297-3590 (5330012973590) | 5360-00-245-2131 (5360002452131) | 5365-01-571-1663 (5365015711663) | |
| 5342-01-255-3551 (5342012553551) | 5330-01-556-4440 (5330015564440) | 5330-01-613-3472 (5330016133472) | 5342-01-259-3873 (5342012593873) | |
| 5340-00-575-1873 (5340005751873) | 5310-00-151-9032 (5310001519032) | 5315-01-622-0550 (5315016220550) | 5340-01-429-0419 (5340014290419) | |
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