The Shielding Gasket,electronic, cataloged under National Stock Number 5999-01-347-4033, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5999-01-347-4033 |
| Primary Part Number | 6203855 |
| Item Name | Shielding Gasket,electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Environmental Protection Material Location | THROUGH RF SHIELDING GASKET CENTER |
| Surface Treatment Document and Classification | UNABLE TO DECODE |
| Style Designator | CIRCULAR |
| Material Document and Classification | UNABLE TO DECODEUNABLE TO DECODE |
| Cross-Sectional Shape Style | EMI |
| Outside Diameter | 2.182 INCHES NOMINAL IN |
| Aperture Diameter | 2.032 INCHES MINIMUM AND 2.052 INCHES MAXIMUM IN |
| Surface Treatment | UNABLE TO DECODE |
| Cross Section Outside Diameter | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Material | UNABLE TO DECODEUNABLE TO DECODE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Weight | 0.0400 lbs |
| Cube | 0.0002 cu ft |
| Part Number | Manufacturer |
|---|---|
| 6203855 PRIMARY | Naval Sea Systems Command (USA) |
| L356 001 425 | Spira Manufacturing Corporation Dba Spira Manufacturing Corp (USA) |
| L356 001 425 | Lockheed Martin Librascope Corporation (USA) |
| Reference | Meaning |
|---|---|
| 8-1003 | 5/9 Secondary reference Spira Manufacturing Corporation Dba Spira Manufacturing Corp |
NSN 5999-01-347-4033 is a Shielding Gasket,electronic, manufactured by Naval Sea Systems Command, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-347-4033 has 3 manufacturer part numbers on file: 6203855 (Naval Sea Systems Command), L356 001 425 (Spira Manufacturing Corporation Dba Spira Manufacturing Corp), L356 001 425 (Lockheed Martin Librascope Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6220-01-484-8937. Verify interchangeability with system specifications before substitution.
Key specifications for 6203855: Environmental Protection Material Location: THROUGH RF SHIELDING GASKET CENTER; Surface Treatment Document and Classification: UNABLE TO DECODE; Style Designator: CIRCULAR; Material Document and Classification: UNABLE TO DECODEUNABLE TO DECODE. 10 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.