The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-563-8037, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-563-8037 |
| Primary Part Number | 250690 |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 2.875 INCHES NOMINAL IN |
| Tube Outside Diameter for Which Designed | 2.500 INCHES NOMINAL IN |
| Material | STEEL |
| Inside Diameter Length | 1.250 INCHES NOMINAL IN |
| Round Cap Outside Surface Condition | SMOOTH |
| 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 |
|---|---|
| 250690 | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 5 | 3/9 Design control — primary reference U.S. Government activity |
| 10A3918 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-00-563-8037 is a Cap,protective,dust and Moisture, manufactured by Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-563-8037 has 1 manufacturer part number on file: 250690 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 5999-00-593-5453. Verify interchangeability with system specifications before substitution.
Key specifications for 250690: Design Type: FRICTION; Overall Diameter: 2.875 INCHES NOMINAL IN; Tube Outside Diameter for Which Designed: 2.500 INCHES NOMINAL IN; Material: STEEL. 6 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.