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| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-188-1690 (011881690) |
| NCB Code | USA (01) |
| Manufacturer | Federal Specifications, Aeronautical Standards Group |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| FF-W-92 | federal specifications | washer flat | RFQ |
| AN961-816S | aeronautical standards group | washer flat | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| AAUB | HOLE DIAMETER | 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ABNM | THICKNESS | 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM |
| ADAV | OVERALL DIAMETER | 0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM |
| MATT | MATERIAL | COPPER ALLOY 270 OVERALL OR COPPER ALLOY 268 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-321,1/2 HARD FED SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-B-626,1/2 HARD FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| PMLC | PRECIOUS MATERIAL AND LOCATION | ALL SURFACES SILVER |
| PRMT | PRECIOUS MATERIAL | SILVER |
| SFTT | SURFACE TREATMENT | SILVER OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-S-365,GR B FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | A TYPE AND 1 GRADE AND E CLASS |
| Relevant Components for NSN - 5310-01-188-1690, 5310011881690 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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