The Seal,nonmetallic Round Section, cataloged under National Stock Number 5330-01-481-2835, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-481-2835 |
| Primary Part Number | MC21815 |
| Item Name | Seal,nonmetallic Round Section |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| MC21815 PRIMARY | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace (USA) |
| 7124FR-964-5704 | Greene Tweed & Co Inc (USA) |
| Reference | Meaning |
|---|---|
| MC21815 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-481-2835 is a Seal,nonmetallic Round Section, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-481-2835 has 2 manufacturer part numbers on file: MC21815 (Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace), 7124FR-964-5704 (Greene Tweed & Co Inc).
Key specifications for MC21815: Criticality Code Justification: AGAV; Special Features: NEXT HIGHER ASSY'S ARE F/A-18E AILERON, NSN 1560-01-472-3909 & F/A-18F AILERON, NSN 1560-01-472-3922; Part Name Assigned by Controlling Agency: INAVY: SEAL, NON-METALLIC; End Item Identification: FIGHTER AIRCRAFT-FIRST (F18 E/F). 1 specification is 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.