The Gasket,optics,cover, cataloged under National Stock Number 5330-01-019-4527, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Sonfarrel Aerospace, Llc Dba Sonfarrel Aerospace Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Gasket,optics,cover |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Sonfarrel Aerospace, Llc Dba Sonfarrel Aerospace Llc (CAGE 8B0V2) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-019-4527 |
| Primary Part Number | 3874499 |
| Item Name | Gasket,optics,cover |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Sonfarrel Aerospace, Llc Dba Sonfarrel Aerospace Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 3874499 PRIMARY | Sonfarrel Aerospace, Llc Dba Sonfarrel Aerospace Llc (USA) |
| Reference | Meaning |
|---|---|
| 728017 | 5/2 Secondary reference U.S. Government activity |
| 11743499 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| 3874499 | 5/9 Secondary reference Sonfarrel Inc. |
NSN 5330-01-019-4527 is a Gasket,optics,cover, manufactured by Sonfarrel Aerospace, Llc Dba Sonfarrel Aerospace Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-019-4527 has 1 manufacturer part number on file: 3874499 (Sonfarrel Aerospace, Llc Dba Sonfarrel Aerospace Llc).
1 possible match (shared part number, not a government interchangeability claim): 5940-01-169-8099. 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.