The Shielding Gasket,electronic, cataloged under National Stock Number 5999-01-321-2823, 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 Avionics Specialties, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5999-01-321-2823 |
| Primary Part Number | 123-1298 |
| Item Name | Shielding Gasket,electronic |
| FSC / FSG | 5999 / 59 — Miscellaneous Electrical and Electronic Components |
| Manufacturer | Avionics Specialties, Inc. |
| Status | ACTIVE |
| Environmental Protection Material Location | THROUGHOUT RF SHIELDING GASKET |
| Precious Material | SILVER |
| Style Designator | CIRCULAR |
| Cross-Sectional Shape Style | EMI |
| Outside Diameter | 3.250 INCHES MINIMUM AND 3.314 INCHES MAXIMUM IN |
| Aperture Diameter | 3.126 INCHES MINIMUM AND 3.190 INCHES MAXIMUM IN |
| Surface Treatment | UNABLE TO DECODE |
| Precious Material and Location | EMI/RFI CONDUCTIVE PARTICLES SILVER |
| Cross Section Outside Diameter | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM 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 | Z |
| Weight | 0.0400 lbs |
| Cube | 0.0145 cu ft |
| Part Number | Manufacturer |
|---|---|
| 19-04-E-182-1285 | Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division (USA) |
| 123-1298 PRIMARY | Avionics Specialties, Inc. (USA) |
| 123-1298 | Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc (USA) |
| 123-1298 | Laird Technologies, Inc Dba Laird Technologies (USA) |
| Reference | Meaning |
|---|---|
| 10139664 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5999-01-321-2823 is a Shielding Gasket,electronic, manufactured by Avionics Specialties, Inc., classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
NSN 5999-01-321-2823 has 4 manufacturer part numbers on file: 19-04-E-182-1285 (Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division), 123-1298 (Avionics Specialties, Inc.), 123-1298 (Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc), 123-1298 (Laird Technologies, Inc Dba Laird Technologies).
Key specifications for 123-1298: Environmental Protection Material Location: THROUGHOUT RF SHIELDING GASKET; Precious Material: SILVER; Style Designator: CIRCULAR; Cross-Sectional Shape Style: EMI. 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.