NSN 3110-01-257-6974 HM8138492255, HM813849-2-255, SB3259A1
Product Details | TAPERED ROLLER BEARING CONE AND ROLLERS
3110-01-257-6974 An assembled inner component of a tapered roller bearing, consisting of a cone (which provides a contact surface for the rolling elements of the bearing), a complement of tapered rollers (the rolling elements), and frequently a retainer (which spaces the rolling elements).
Part Alternates: HM8138492255, HM813849-2-255, SB3259A1, SB3259A-1, 3110-01-257-6974, 01-257-6974, 3110012576974, 012576974
Bearings | Bearings, Antifriction, Unmounted
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 31 | 23 JUN 1987 | 01-257-6974 | 00023 ( CONE AND ROLLERS, TAPERED ROLLER BEARING ) |
Drawings & Photos | NSN 3110-01-257-6974
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Technical Data | NSN 3110-01-257-6974
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP E51100 OR STEEL COMP E52100 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE J404 ASSN STD 1ST MATERIAL RESPONSE OR AISI UNS G51986 ASSN STD 1ST MATERIAL RESPONSE OR SAE J404 ASSN STD 2ND MATERIAL RESPONSE OR AISI UNS G51986 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| STYLE DESIGNATOR | 552 NORMAL ANGLE |
| BORE DIAMETER | 2.8125 INCHES MINIMUM AND 2.8130 INCHES MAXIMUM |
| CONE CORNER RADIUS | 0.1406 INCHES NOMINAL |
| CONE WIDTH | 1.4375 INCHES MINIMUM AND 1.4455 INCHES MAXIMUM |
| STANDARD TOLERANCE DESIGNATION | AFBMA CLASS 2 |
| RETAINER FABRICATION METHOD | STAMPED |
| TEST DATA DOCUMENT | 81349-MIL-T-8679 SPECIFICATION |
| CRITICALITY CODE JUSTIFICATION | TEST AND FTLD |
| III FUNCTIONAL DESCRIPTION | CRTL APPL ACFT FLIGHT SAFETY |
| III TYPE/MODEL DESIGNATION | TS |
| III REFERENCE DATA AND LITERATURE | MFR SELECTED ITEM DWG SB3259,DOD-STD-100,PARA 201.4.5 |
| III SUPPLEMENTARY FEATURES | OPERATING TEMP M65.0 P250.0 DEGREE F |
Restrictions/Controls & Freight Information | NSN 3110-01-257-6974
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | Y | The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||