The Boot,dust and Moisture Seal, cataloged under National Stock Number 5930-01-327-7943, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Sea Systems Command. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-327-7943 |
| Primary Part Number | 5820121 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Opening Inside Diameter | 3.780 INCHES MINIMUM AND 3.830 INCHES MAXIMUM IN |
| Style Designator | THRU-HOLE |
| Material Document and Classification | ZZ-R-765,CLASS 1A OR 1B,GRADE 40 FED SPEC SINGLE MATERIAL RESPONSE BODY A |
| Base Inside Diameter | 4.108 INCHES MINIMUM AND 4.168 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE BODY |
| Hazardous Locations/environmental Protection | GENERAL PURPOSE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5820121 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5930-01-327-7943 is a Boot,dust and Moisture Seal, manufactured by Naval Sea Systems Command, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-327-7943 has 1 manufacturer part number on file: 5820121 (Naval Sea Systems Command).
Key specifications for 5820121: Overall Height: 1.980 INCHES MINIMUM AND 2.020 INCHES MAXIMUM IN; Opening Inside Diameter: 3.780 INCHES MINIMUM AND 3.830 INCHES MAXIMUM IN; Style Designator: THRU-HOLE; Material Document and Classification: ZZ-R-765,CLASS 1A OR 1B,GRADE 40 FED SPEC SINGLE MATERIAL RESPONSE BODY A. 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.