The Seal,plain, cataloged under National Stock Number 5330-01-284-4766, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Gichner Systems Group, Inc. Div C5isr Division. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Seal,plain |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps) (CAGE 30781); Gichner Systems Group, Inc. Div C5isr Division (CAGE 29381) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-284-4766 |
| Primary Part Number | 4900121 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Gichner Systems Group, Inc. Div C5isr Division |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12500250 | Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps) (USA) |
| 4900121 PRIMARY | Gichner Systems Group, Inc. Div C5isr Division (USA) |
| Reference | Meaning |
|---|---|
| 4900121 | 3/9 Design control — primary reference Gichner Systems Group Inc Gichner Mobilizer Div |
NSN 5330-01-284-4766 is a Seal,plain, manufactured by Gichner Systems Group, Inc. Div C5isr Division, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-284-4766 has 2 manufacturer part numbers on file: 12500250 (Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps)), 4900121 (Gichner Systems Group, Inc. Div C5isr Division).
1 possible match (shared part number, not a government interchangeability claim): 7045-01-323-6330. Verify interchangeability with system specifications before substitution.
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.