The Shielding Gasket,electronic, cataloged under National Stock Number 5999-01-285-8909, 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 Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems. 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 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 | 5999-01-285-8909 |
| Primary Part Number | 89402-1 |
| Item Name | Shielding Gasket,electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems |
| Status | ACTIVE |
| Environmental Protection Material Location | THROUGHOUT RF SHIELDING GASKET |
| Style Designator | CIRCULAR |
| Cross-Sectional Shape Style | MESH AND COMPOSITION |
| Outside Diameter | 5.750 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 4.585 INCHES MINIMUM AND 4.615 INCHES MAXIMUM IN |
| Cross Section Outside Diameter | 5.750 INCHES NOMINAL IN |
| Material | UNABLE TO DECODE |
| Hole Diameter | 0.266 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| 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 |
|---|---|
| 89402-1 PRIMARY | Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems (USA) |
NSN 5999-01-285-8909 is a Shielding Gasket,electronic, manufactured by Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-285-8909 has 1 manufacturer part number on file: 89402-1 (Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems).
1 possible match (shared part number, not a government interchangeability claim): 5342-01-335-3359. Verify interchangeability with system specifications before substitution.
Key specifications for 89402-1: Environmental Protection Material Location: THROUGHOUT RF SHIELDING GASKET; Style Designator: CIRCULAR; Cross-Sectional Shape Style: MESH AND COMPOSITION; Outside Diameter: 5.750 INCHES NOMINAL IN. 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.
NSN 5999-01-285-8909 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.