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| Item Name | Plate Retaining Bearing |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3110 Bearings Antifriction Unmounted |
| National Item Identification Number (NIIN) | 01-129-7977 (011297977) |
| NCB Code | USA (01) |
| Manufacturer | Triumph Engine Control Systems Llc, Nimikkeistokeskus Ncb Finland |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RAISED SURFACE W/APERTURE |
| ABMB | MINOR THICKNESS | 2.158 INCHES NOMINAL |
| ABTB | MOUNTING HOLE DIAMETER | 0.1336 INCHES MINIMUM AND 0.1417 INCHES MAXIMUM |
| ABVL | APERTURE DIAMETER | 1.800 INCHES NOMINAL |
| ADFU | MOUNTING HOLE ARRANGEMENT STYLE | VERTICAL CENTERLINE |
| ADNZ | DISTANCE BETWEEN HOLES ALONG WIDTH | 2.610 INCHES NOMINAL |
| ADUM | OVERALL THICKNESS | 3.220 INCHES NOMINAL |
| AYRZ | COUNTERSINK DIAMETER | 0.180 INCHES MINIMUM AND 0.210 INCHES MAXIMUM |
| CKSR | RAISED SURFACE HEIGHT | 2.282 INCHES MINIMUM AND 2.290 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| CWGF | COUNTERBORE DIAMETER | 2.047 INCHES MINIMUM AND 2.0478 INCHES MAXIMUM |
| CWGX | DISTANCE FROM HORIZONTAL CENTERLINE TO CENTER OF LOWER HOLE | 1.305 INCHES NOMINAL |
| CWHX | COUNTERBORE DEPTH | 2.316 INCHES MINIMUM AND 2.320 INCHES MAXIMUM |
| CWJW | MOUNTING HOLE TYPE | ROUND,UNTHREADED,COUNTERSUNK |
| CWLK | OUTSIDE RAISED SURFACE DIAMETER | 2.3746 INCHES MINIMUM AND 2.3749 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | THREADED MOUNTING HOLES; SIX SECONDARY MOUNTING HOLES 0.216 IN. DIA MIN TO 0.236 IN. DIA MAX,EQUALLY SPACED ON 2.780 IN. DIA BLT CIRCLE |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| STYL | STYLE DESIGNATOR | HEXAGONAL |
| Relevant Components for NSN - 3110-01-129-7977, 3110011297977 | ||||
| 3110-00-003-9270 (3110000039270) | 3120-00-948-5325 (3120009485325) | 3120-01-281-8447 (3120012818447) | 3120-00-432-7549 (3120004327549) | |
| 3120-12-347-5626 (3120123475626) | 3120-00-190-4518 (3120001904518) | 3110-01-606-7510 (3110016067510) | 3110-01-400-6136 (3110014006136) | |
| 3110-00-100-3617 (3110001003617) | 3120-00-174-6371 (3120001746371) | 3110-01-556-1019 (3110015561019) | 3120-01-104-8486 (3120011048486) | |
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