The Shielding Gasket,electronic, cataloged under National Stock Number 5999-01-227-0899, 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 Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-227-0899 |
| Primary Part Number | 4200-018-008 |
| Item Name | Shielding Gasket,electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix |
| Status | ACTIVE |
| Environmental Protection Material Location | THROUGHOUT SEALING GASKET |
| Cross-Sectional Thickness | 0.075 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Style Designator | CIRCULAR |
| Cross-Sectional Shape Style | METAL AND SYNTHETIC RUBBER |
| Outside Diameter | 0.422 INCHES NOMINAL IN |
| Aperture Diameter | 0.319 INCHES NOMINAL IN |
| Precious Material and Location | THROUGHOUT SHIELDING GASKET SILVER |
| Material | UNABLE 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 |
| Part Number | Manufacturer |
|---|---|
| 4200-018-008 PRIMARY | Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix (USA) |
| Reference | Meaning |
|---|---|
| 5335673-001 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5999-01-227-0899 is a Shielding Gasket,electronic, manufactured by Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-227-0899 has 1 manufacturer part number on file: 4200-018-008 (Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix).
Key specifications for 4200-018-008: Environmental Protection Material Location: THROUGHOUT SEALING GASKET; Cross-Sectional Thickness: 0.075 INCHES NOMINAL IN; Precious Material: SILVER; Style Designator: CIRCULAR. 9 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.