| Item Name | Brake Single Disk |
| Federal Supply Group (FSG) | Aircraft Components and Accessories |
| Federal Supply Class (FSC) | 1630 Aircraft Wheel and Brake systems |
| National Item Identification Number (NIIN) | 01-345-0479 (013450479) |
| NCB Code | USA (01) |
| Manufacturer | Lockheed Martin Corporation, Meggitt Aircraft Braking Systems, Loral Aerospace Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABTB | MOUNTING HOLE DIAMETER | 0.391 INCHES NOMINAL |
| AYLR | ROTATING DISK THICKNESS | 0.188 INCHES NOMINAL |
| ABMK | OVERALL WIDTH | 3.440 INCHES NOMINAL |
| AGAV | END ITEM IDENTIFICATION | CH-47 HEL |
| APHE | OPERATION METHOD | HYDRAULIC |
| ABKG | BOLT CIRCLE DIAMETER | 3.500 INCHES NOMINAL |
| ABTJ | MOUNTING HOLE QUANTITY | 8 |
| ADAV | OVERALL DIAMETER | 11.032 INCHES NOMINAL |
| AXGY | MOUNTING METHOD | ANCHOR PLATE FLANGE |
| AYLJ | BRAKING AREA OUTSIDE DIAMETER | 8.441 INCHES MINIMUM AND 8.459 INCHES MAXIMUM |
| AYLM | LINING CONTACT SURFACE WIDTH | 0.256 INCHES NOMINAL |
| AYLW | HYDRAULIC CYLINDER QUANTITY | 3 |
| AYNS | LINING FRICTION SURFACE AREA | 18.360 SQUARE INCHES NOMINAL |
| AYNY | INSTALLATION LOCATION | LEFT HAND SIDE AND RIGHT HAND SIDE |
| AYPE | WHEEL SIZE FOR WHICH DESIGNED | 22 BY 5.5 IN. WHEEL |
| AYLX | HYDRAULIC CYLINDER DIAMETER | 2.000 INCHES MINIMUM AND 2.002 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | ITEM HAS IMPROVED PADS |
| Relevant Components for NSN - 1630-01-345-0479, 1630013450479 | ||||
| 1670-01-607-7310 (1670016077310) | 1680-01-687-2917 (1680016872917) | 1615-01-124-5344 (1615011245344) | 1680-01-702-7055 (1680017027055) | |
| 1680-01-573-8678 (1680015738678) | 1615-00-072-7146 (1615000727146) | 1650-00-371-0136 (1650003710136) | 1680-00-477-3273 (1680004773273) | |
| 1620-01-654-7735 (1620016547735) | 1680-00-860-1603 (1680008601603) | 1630-01-576-1639 (1630015761639) | 1680-00-716-4268 (1680007164268) | |
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