The Shielding Gasket,electronic, cataloged under National Stock Number 5999-00-658-9656, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5999-00-658-9656 |
| Primary Part Number | 1857968 |
| Item Name | Shielding Gasket,electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Environmental Protection Material Location | RF SHIELDING GASKET OUTER EDGE |
| Cross-Sectional Height | 0.156 INCHES NOMINAL IN |
| Minor Height | 0.109 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | UNABLE TO DECODE |
| Cross-Sectional Shape Style | MESH AND COMPOSITION |
| Outside Diameter | 5.000 INCHES NOMINAL IN |
| Aperture Diameter | 3.750 INCHES NOMINAL IN |
| Minor Width | 0.125 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 4.500 INCHES NOMINAL IN |
| Material | UNABLE TO DECODE |
| Hole Diameter | 0.125 INCHES NOMINAL IN |
| 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 | 0.0100 lbs |
| Cube | 0.0010 cu ft |
| Part Number | Manufacturer |
|---|---|
| 341566 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 31-297B | Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division (USA) |
| 1857968 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 03-0102-1297 | Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division (USA) |
| Reference | Meaning |
|---|---|
| 2015-50172-05 | 5/9 Secondary reference Spectrum Control Inc |
NSN 5999-00-658-9656 is a Shielding Gasket,electronic, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-00-658-9656 has 4 manufacturer part numbers on file: 341566 (Lockheed Martin Corporation Div Rms - Mitchel Field), 31-297B (Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division), 1857968 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 03-0102-1297 (Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-266-3101. Verify interchangeability with system specifications before substitution.
Key specifications for 1857968: Environmental Protection Material Location: RF SHIELDING GASKET OUTER EDGE; Cross-Sectional Height: 0.156 INCHES NOMINAL IN; Minor Height: 0.109 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN; Style Designator: CIRCULAR. 13 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.