| Item Name | Plate Retaining Bearing |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3110 Bearings Antifriction Unmounted |
| National Item Identification Number (NIIN) | 01-218-1566 (012181566) |
| NCB Code | USA (01) |
| Manufacturer | Hema Disli Sanayi Ve Ticas, Allison Transmission Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RAISED SURFACE W/ APERTURE |
| ABKV | OUTSIDE DIAMETER | 6.750 INCHES NOMINAL |
| ABMB | MINOR THICKNESS | 0.140 INCHES NOMINAL |
| ABVL | APERTURE DIAMETER | 2.400 INCHES NOMINAL |
| ADFU | MOUNTING HOLE ARRANGEMENT STYLE | VERTICAL CENTERLINE |
| ADNZ | DISTANCE BETWEEN HOLES ALONG WIDTH | 6.000 INCHES NOMINAL |
| ADUM | OVERALL THICKNESS | 1.090 INCHES NOMINAL |
| AYRZ | COUNTERSINK DIAMETER | 0.400 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| CKSR | RAISED SURFACE HEIGHT | 0.390 INCHES MINIMUM AND 0.430 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| CQFM | HARDNESS RATING | 70.0 BRINELL STANDARD MINIMUM AND 90.0 BRINELL STANDARD MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 0.375 INCHES |
| CRSQ | COUNTERSINK ANGLE | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM |
| CWGF | COUNTERBORE DIAMETER | 5.000 INCHES NOMINAL |
| CWGX | DISTANCE FROM HORIZONTAL CENTERLINE TO CENTER OF LOWER HOLE | 3.000 INCHES NOMINAL |
| CWHX | COUNTERBORE DEPTH | 1.500 INCHES NOMINAL |
| CWJW | MOUNTING HOLE TYPE | ROUND,THREADED,COUNTERSUNK |
| CWKW | INSIDE RAISED SURFACE DIAMETER | 3.0570 INCHES MINIMUM AND 3.0585 INCHES MAXIMUM |
| CWLK | OUTSIDE RAISED SURFACE DIAMETER | 5.125 INCHES MINIMUM AND 5.126 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | REDUCED OD OF FLANGE TO 2.770 IN. R,UPPER RIGHT QUADRANT; SIX RECESSED SLOTS IN FRONT FACE OF RAISED SURFACE; TWELVE 0.414 IN. DIA THRU HOLES IN FLANGE,UNEQUALLY SPACED ON 6.000 IN. DIA BOLT CIRCLE |
| MATT | MATERIAL | ALUMINUM ALLOY 355.0 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J453,GRADE 322-T71 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | ROUND |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 3110-01-218-1566, 3110012181566 | ||||
| 3110-01-152-8152 (3110011528152) | 3120-01-185-8740 (3120011858740) | 3120-00-661-4351 (3120006614351) | 3120-00-518-6871 (3120005186871) | |
| 3110-00-168-1471 (3110001681471) | 3110-01-354-4581 (3110013544581) | 3120-01-680-4661 (3120016804661) | 3120-01-518-6652 (3120015186652) | |
| 3120-00-382-2710 (3120003822710) | 3120-00-529-8687 (3120005298687) | 3110-01-143-1798 (3110011431798) | 3110-01-500-2447 (3110015002447) | |
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