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| Item Name | Ring Bearing Inner |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3110 Bearings Antifriction Unmounted |
| National Item Identification Number (NIIN) | 01-257-6976 (012576976) |
| NCB Code | USA (01) |
| Manufacturer | Sikorsky Aircraft Corporation, Mcgill Manufacturing Company Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMK | OVERALL WIDTH | 3.4980 INCHES MINIMUM AND 3.4985 INCHES MAXIMUM |
| ABXV | BORE DIAMETER | 1.7490 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM |
| ADGA | OVERALL OUTSIDE DIAMETER | 2.1245 INCHES MINIMUM AND 2.1250 INCHES MAXIMUM |
| AGYE | SURFACE FINISH | GROUND |
| AGZD | BORE SHAPE | STRAIGHT |
| CBBL | FEATURES PROVIDED | LUBRICATION HOLE AND LUBRICATION GROOVE |
| CRTL | CRITICALITY CODE JUSTIFICATION | TEST AND FTLD |
| CTFZ | STANDARD TOLERANCE DESIGNATION | AFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS |
| FTLD | FUNCTIONAL DESCRIPTION | CRTL APPL ACFT FLIGHT SAFETY |
| MATT | MATERIAL | STEEL COMP E52100 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J404 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AISI UNS G52986 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| RDAL | REFERENCE DATA AND LITERATURE | MFR SELECTED ITEM DWG SB2517,DOD-STD-100,PARA 201.4.5 |
| STYL | STYLE DESIGNATOR | SOLID INNER RACE,JOURNAL AND NEEDLE |
| SUPP | SUPPLEMENTARY FEATURES | HARDNESS RC 60.0 MIN 65.0 MAX; OPERATING TEMP M65.0 P250.0 DEG F |
| TEST | TEST DATA DOCUMENT | 81349-MIL-T-8679 AND 100.0 PCT MAGNAFUX MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS,BROCHURES,ETC.,THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS,INDUSTRY DIRECTORIES,AND SIM |
| Relevant Components for NSN - 3110-01-257-6976, 3110012576976 | ||||
| 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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