16G1-164-4 PN 177380-2.pdf

T.O. 16G1-164-4

TECHNICAL MANUAL

ILLUSTRATED PARTS BREAKDOWN

(DEPOT)

NOSE LANDING GEAR DOOR 48 DEGREE

REVERSAL GEARBOX ASSEMBLY

177380-2 1680-01-159-9591

(ATOS)

DISTRIBUTION STATEMENT: Distribution authorized to the Department of Defense and US DoD contractors only (Administrative or Operational Use) (15 February 2005). Other requests shall be referred to WR-ALC/LTET, 44 Green St., Warner Robins GA 31093-2606.

WARNING: This document contains technical data whose export is restricted by the Arms Export Control Act (Title 22, U.S.C., Sec 2751, et.

seq.) or the Export Administration Act of 1979, as amended (Title 50, U.S.C., App 2401, et. seq.). Violations of these export laws are subject to severe criminal penalties. Disseminate in accordance with provisions of DoD Directive 5230.25.

HANDLING AND DESTRUCTION NOTICE: Comply with distribution statement and destroy by any method that will prevent disclosure of the contents or reconstruction of the document.

Published Under Authority of the Secretary of the Air Force

15 FEBRUARY 2005

1. INTRODUCTION.

3. FIGURE AND INDEX NUMBER COLUMN.

This Illustrated Parts Breakdown lists, illustrates, and

This column provides the figure and index numbers used todescribes all parts for the 177380-2 Nose Landing Gear key a part or assembly listed in the MPL to its location inDoor, 48 Degree Reversal Gearbox Assembly, manufac-an illustration. The figure number precedes the first indextured by Curtiss-Wright Flight Systems, Inc., Fairfield, NJ number in each listing and the first index number on each07006.

page of a multi-page listing. Index numbers are listed in sequence.2. MAINTENANCE PARTS LIST (MPL).

4. PART NUMBER COLUMN.The MPL is divided into figures by main equipment groups and/or assemblies. Each group or assembly is keyed to a

Part numbers may be specification control numbers, vendorrelated illustration by figure and index number. They are part numbers or commercial part numbers. Part numbers,then broken down into assemblies, modules and detailed including dash numbers, are assigned to each listed part inparts. The relation of each part to its next higher assembly accordance with current industry engineering practices.and/or group is shown either by indentation or by figure Parts which are indexed in the MPL, but not shown on thecross-reference notes. The MPL is divided into seven illustration, have a dash (-) preceding the index number.columns as described below.

FIGURE notation in description of item indicates figure5. COMMERCIAL AND GOVERNMENT ENTITY and index numbers at which units per assembly can be

(CAGE) CODE COLUMN. determined.

Explanations of CAGE codes are contained in CAGE 8. USABLE ON CODES.

Cataloging Handbook H4/H8 and amendments thereto.

When two or more assemblies are listed in the same parts

6. DESCRIPTION COLUMN. list, a code letter (A, B, etc.) is assigned to each main assembly. All subcomponents, peculiar to a particular The description column contains indenture, nomenclature assembly, are identified by the same code letter as the main and cross-reference information. The identifying noun is assembly. If parts are common to all assemblies covered, given first. Sizes, dimensions, materials, and tolerances are the Usable on Code column is left blank. Usable on Codes then indicated. If applicable, the appropriate numbers for are further explained in MIL-PRF-38807C.

types, models, specifications, specification control draw-ings, and source control drawings follow the nomenclature. 9. SOURCE, MAINTENANCE, AND When the drawing number for a part is different than the

RECOVERABILITY (SMR) CODES.part number (excluding dash differences), the drawing number follows the description. When a part is authorized

Information about Joint Military Services Uniform SMRfor local manufacture, and a specific drawing is required, codes and unique source codes can be found in T.O. 00-25-the drawing number follows the description. References to 195.other illustrations for information on detail parts or infor-mation on next higher assemblies (NHA) are given. Attach-

10. SYMBOLS USED IN THE MPL.ing parts are identified by the abbreviation (AP) following the description. Parts listed in the MPL are indented to A dash (-) before an index number denotes a part which isindicate item relationship or NHA. Nomenclature of each not illustrated. A number sign (#) flush right of a partassembly is followed in the list (except for attaching parts) number indicates that detail parts are listed in a separateby nomenclature of its component indented one column to manual. An asterisk (*) flush right of the part numberthe right. This indentation indicates relationship of compo-means the marking is to be requisitioned in accordancenent to assembly. To determine NHA of a part or assembly, with AFI 37-162. The letter F before the figure numbernote column in which the first word of nomenclature means follows and is used when an assembly or part hasappears. First item directly above, which appears one not been assigned an index number, and the figure andcolumn to the left (except for attaching parts), is the NHA index number of the preceding part has been used.

Description

11. ABBREVIATIONS.

1234567

The following is a list of abbreviations used in the Illus-END ITEM, COMPONENT, MAJOR ASSEMBLY trated Parts Breakdown.⋅ HCI DETAIL PARTS FOR END ITEM, COMPONENT, MAJOR ASSEMBLY

AP Attaching Parts⋅ ASSEMBLY AR As Required⋅ Attaching parts for assembly (AP)

⋅ ⋅ Detail parts for assembly Hex Hexagon ⋅ ⋅ Subassemblies No. Number ⋅ ⋅ Attaching parts for subassemblies (AP)

NP Non-Procurable⋅ ⋅ ⋅ Detail parts for subassemblies ⋅ ⋅ ⋅ Sub-subassemblies ⋅ ⋅ ⋅ Attaching parts for sub-subassemblies (AP) 12. PARTS STANDARDIZATION.

⋅ ⋅ ⋅ ⋅ Detail parts for sub-subassemblies

Authority for use of a part number different than the part number listed in the IPB is established by the Department7. UNITS PER ASSEMBLY COLUMN.

of Defense (DoD) Interchangeability and Substitution () Program. Refer to the DO43B Master Item IdentificationQuantities shown in this column represent units required Base for Air Force information. The maintenance techni-for each detail part in an assembly, each assembly in the cian has final responsibility and authority for determiningNHA, and each attaching part to attach one unit or one acceptability of substitute parts. Authority for use of a partassembly. The abbreviation AR (as required) is used when number different than the part number listed in this IPBquantity required must be determined when parts are shall be approved in writing by the cognizant engineeringinstalled. The abbreviation REF (reference) indicates that agency responsible for configuration control.item has been previously listed under its NHA. The SEE

Figure 1. Gearbox Assembly, 48 Degree Reversal, Nose Landing Gear Door

FIGURE &

INDEX/ UNITS USABLE

SHEET PART DESCRIPTION PER ON SMR

NO. NUMBER CAGE 1234567 ASSY CODE CODE

1- 177380-2 71791 GEARBOX ASSEMBLY, 48° Reversal Nose LaNding Gear Door

1 AN173-C12 88044 . BOLT

2 MS1 7826-3 96906 . NUT, Self-locking, hex

1 177826-1 71791 . GEAR/BEARING ASSEMBLY, 48°

177804-1 71791 . . SEAL ASSEMBLY

3 177297 71791 . . SPRING, Retaining (AP) 4 177293 71791 . . . RETAINER, Seal

5 178747-1 71791 . . . SEAL

6 178746-1 71791 . . . SEAL

7 MS29561-130 96906 . . PACKING, Preformed O-ring 8 177369 71791 . . RETAINER, Bearing

9 NAS6604H7 80205 . . BOLT (AP)

10 AN960KD416 88044 . . WASHER (AP)

11 178111-1 71791 . . LOCKWASHER

12 NAS1493-7 80205 . . LOCKNUT

13 177704-3 71791 . . SHIM

14 177371 71791 . . RETAINER, Bearing 15 MS29561-136 96906 . . PACKING, Preformed O-ring 16 177702-3 71791 . . BEARING, Ball, annular, radial, counterbored outer ring, paired

17 177349-1 71791 . . GEAR/PLUG ASSEMBLY

18 MS29561-140 96906 . PACKING, Preformed O-ring 19 177378 71791 . SHIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AR 20 177703-2 71791 . BEARING, Roller

21 AN173-C12 88044 . BOLT

22 MS17826-3 96906 . NUT, Self-Locking, hex

177804-1 71791 . SEAL ASSEMBLY

23 177297 71791 . SPRING, Retaining (AP) 24 177293 71791 . . RETAINER, Seal

25 178747-1 71791 . . SEAL

26 178746-1 71791 . . SEAL

27 MS29561-130 96906 . PACKING, Preformed 28 177385 71791 . SPACER, Ring 29 177701-81 71791 . BEARING, Ball

177827-1 71791 . GEAR/BEARING ASSEMBLY

30 NAS6604H7 80205 . . BOLT (AP)

31 AN960KD416 88044 . . WASHER (AP)

32 177372 71791 . . CAP, Bearing 33 177704-3 71791 . . SHIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AR

34 178111-1 71791 . . LOCKWASHER

35 NAS1493-7 80205 . . LOCKNUT

36 177371 71791 . . RETAINER, Bearing 37 MS29561-136 96906 . . PACKING, Preformed 38 177702-3 71791 . . BEARING, Ball, annular, radial, counterbored outer ring, paired

39 177356-1 71791 . . GEAR/PLUG ASSEMBLY

40 MS29561-140 96906 . PACKING, Preformed 41 177378 71791 . SHIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AR 42 178117-97 71791 . PLATE, Identification

177440 71791 . HOUSING/INSERT ASSEMBLY

43 MS124696 96906 . . INSERT, Screw thread

FIGURE &

INDEX/ UNITS USABLE

SHEET PART DESCRIPTION PER ON SMR

NO. NUMBER CAGE 1234567 ASSY CODE CODE

1- 44 177397 71791 . . HOUSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NP

THE END

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setdistillerparams /HWResolution [2400 2400] /PageSize [612.000 792.000] >> setpagedevice