The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-419-5944, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Bemco, Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-419-5944 |
| Primary Part Number | BE495 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Bemco, Inc |
| Status | ACTIVE |
| FSC Application Data | DRIVE MECHANISM,HELICOPTER |
| Sealing Method | MECHANICAL |
| Opening Inside Diameter | 4.000 INCHES NOMINAL IN |
| Body Outside Diameter | 6.000 INCHES NOMINAL IN |
| Mounting Method | CLAMP AND FRICTION |
| Body Height | 4.250 INCHES MINIMUM AND 4.750 INCHES MAXIMUM IN |
| Style Designator | THRU-HOLE, EXPANDABLE |
| Material Thickness | 0.030 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Mounting Device Quantity | 1 |
| Base Outside Diameter | 5.030 INCHES MINIMUM AND 5.045 INCHES MAXIMUM IN |
| Material | GLASS FIBER AND RUBBER CHLOROPRENE BODY |
| 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 |
|---|---|
| 204-011-462-1 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| BE495 PRIMARY | Bemco, Inc (USA) |
| Reference | Meaning |
|---|---|
| 204-011-462-001 | 5/2 Secondary reference U.S. Government activity |
| 204-011-462-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5340-00-419-5944 is a Boot,dust and Moisture Seal, manufactured by Bemco, Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-419-5944 has 2 manufacturer part numbers on file: 204-011-462-1 (Leonardo Spa Helicopters Division - Production Site), BE495 (Bemco, Inc).
Key specifications for BE495: Overall Height: 4.750 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN; FSC Application Data: DRIVE MECHANISM,HELICOPTER; Sealing Method: MECHANICAL; Opening Inside Diameter: 4.000 INCHES NOMINAL IN. 11 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.