The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-497-3267, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Meggitt (uk) Ltd Div Meggitt Sensing Systems. 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 | 5340-00-497-3267 |
| Primary Part Number | KEC1663 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Meggitt (uk) Ltd Div Meggitt Sensing Systems |
| Status | ACTIVE |
| Width Across Flats | 0.431 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Design Type | THREADED |
| Surface Treatment | ENAMEL |
| Thread Class | 2B |
| Material | ALUMINUM ALLOY |
| Thread Size and Series/type Designator | 5/16-32 UN |
| Inside Diameter Length | 0.220 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 |
|---|---|
| KEC1663 PRIMARY | Meggitt (uk) Ltd Div Meggitt Sensing Systems (GBR) |
NSN 5340-00-497-3267 is a Cap,protective,dust and Moisture, manufactured by Meggitt (uk) Ltd Div Meggitt Sensing Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-497-3267 has 1 manufacturer part number on file: KEC1663 (Meggitt (uk) Ltd Div Meggitt Sensing Systems).
Key specifications for KEC1663: Width Across Flats: 0.431 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN; Design Type: THREADED; Surface Treatment: ENAMEL; Thread Class: 2B. 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.