The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-01-139-6786, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-139-6786 |
| Primary Part Number | 65414-03111-108 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| FSC Application Data | FLIGHT CONTROL SYSTEM |
| Sealing Method | MECHANICAL |
| Opening Inside Diameter | 1.510 INCHES NOMINAL IN |
| Body Outside Diameter | 4.860 INCHES NOMINAL IN |
| Body Height | 3.400 INCHES NOMINAL IN |
| Style Designator | THRU-HOLE |
| Base Outside Diameter | 5.920 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 65414-03111-108 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5340-01-139-6786 is a Boot,dust and Moisture Seal, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-139-6786 has 1 manufacturer part number on file: 65414-03111-108 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 65414-03111-108: Overall Height: 5.600 INCHES NOMINAL IN; FSC Application Data: FLIGHT CONTROL SYSTEM; Sealing Method: MECHANICAL; Opening Inside Diameter: 1.510 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.