The Cover,protective,dust and Moistu, cataloged under National Stock Number 5340-01-565-5491, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-565-5491 |
| Item Name | Cover,protective,dust and Moistu |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Closed End Overall Diameter | 49.0 MILLIMETERS MAXIMUM MM |
| Specification/standard Data | MIL-DTL-3899932D DTD 5-30-2008 GOVERNMENT SPECIFICATION |
| Open End Inside Diameter | 17.6 MILLIMETERS MINIMUM MM |
| Material | PLASTIC AND SILICONE AND STEEL CORROSION RESISTING |
| 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 |
| Reference | Meaning |
|---|---|
| MIL-DTL-38999 | 4/1 Identification reference U.S. Government activity |
| D38999/32M09N | 2/2 Government specification standardization U.S. Government activity |
NSN 5340-01-565-5491 is a Cover,protective,dust and Moistu, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-565-5491: Closed End Overall Diameter: 49.0 MILLIMETERS MAXIMUM MM; Specification/standard Data: MIL-DTL-3899932D DTD 5-30-2008 GOVERNMENT SPECIFICATION; Special Features: THREAD SIZE IN INCHES 0.625-0.1P-0.3-TS, CLASS 2B;SPECIFIC MATERIAL: COVER-HIGH PERFORMANCE RESIN, GASKET-SILICONE ELASTOMER, RING-CRES, PASSIVATED, 1020 MAX THICKNESS, ROPE-INSULATED SS, PASSIVATED TO WITHSTAND 200 DEG CEL, FASTENER-SS, PASSIVATED;ROPE SHALL ROTATE FREELY ON FASTENER;FASTENER TENSILE STRENGTH SHALL BE 25 LBS BOTH AXIAL AND LONGITUDINAL DIRECTION;STYLE IS ROPE WITH RING LBS; Open End Inside Diameter: 17.6 MILLIMETERS MINIMUM MM. 4 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.