The Shielding Gasket,electronic, cataloged under National Stock Number 5999-01-286-6593, 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 Lockheed Martin Corporation Dba Lockheed Martin Government. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5999-01-286-6593 |
| Primary Part Number | 298-9278-1 |
| Item Name | Shielding Gasket,electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Lockheed Martin Corporation Dba Lockheed Martin Government |
| Status | ACTIVE |
| Environmental Protection Material Location | THROUGHOUT RF SHIELDING GASKET |
| Precious Material | SILVER |
| Style Designator | NON-CIRCULAR |
| Cross-Sectional Shape Style | EMI HOLLOW |
| Aperture Width | 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN |
| Cross Section Inside Diameter | 0.125 INCHES NOMINAL IN |
| Aperture Length | 8.469 INCHES MINIMUM AND 8.531 INCHES MAXIMUM IN |
| Precious Material and Location | EMI/RFI CONDUCTIVE PARTICLES SILVER |
| Cross Section Outside Diameter | 0.250 INCHES NOMINAL IN |
| 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 | JN |
| Weight | 0.2000 lbs |
| Cube | 0.0012 cu ft |
| Part Number | Manufacturer |
|---|---|
| 298-9278-1 | Premier Shielding Co, Inc (USA) |
| 298-9278-1 PRIMARY | Lockheed Martin Corporation Dba Lockheed Martin Government (USA) |
| 298-9278-1 | Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division (USA) |
| Reference | Meaning |
|---|---|
| 298-9278-1 | 5/9 Secondary reference Technical Wire Products, Llc Dba Twp |
| 398-15864-1 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Dba Lockheed Martin Government |
NSN 5999-01-286-6593 is a Shielding Gasket,electronic, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Government, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-286-6593 has 3 manufacturer part numbers on file: 298-9278-1 (Premier Shielding Co, Inc), 298-9278-1 (Lockheed Martin Corporation Dba Lockheed Martin Government), 298-9278-1 (Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-471-0961. Verify interchangeability with system specifications before substitution.
Key specifications for 298-9278-1: Environmental Protection Material Location: THROUGHOUT RF SHIELDING GASKET; Precious Material: SILVER; Style Designator: NON-CIRCULAR; Overall Length: 9.719 INCHES MINIMUM AND 9.781 INCHES MAXIMUM IN. 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.