The Seal,nonmetallic Special Shaped, cataloged under National Stock Number 5330-01-123-4639, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Mueller Die Cut Solutions, Llc Dba Sur-Seal, Llc. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-123-4639 |
| Primary Part Number | MBC9568 |
| Item Name | Seal,nonmetallic Special Shaped |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Mueller Die Cut Solutions, Llc Dba Sur-Seal, Llc |
| Status | ACTIVE |
| Material Document and Classification | MIL-PRF-6855 CLASS 2,TYPE A, GR 70 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | RUBBER CHLOROPRENE CLASS CR OVERALL |
| 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 |
|---|---|
| 65316-12008-105 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| MBC9568 PRIMARY | Mueller Die Cut Solutions, Llc Dba Sur-Seal, Llc (USA) |
| Reference | Meaning |
|---|---|
| MBC9563 | 5/9 Secondary reference Mueller Die Cut Solutions, Llc Dba Sur-Seal, Llc |
| 65316-12008-103 | 5/9 Secondary reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 5330-01-123-4639 is a Seal,nonmetallic Special Shaped, manufactured by Mueller Die Cut Solutions, Llc Dba Sur-Seal, Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-123-4639 has 2 manufacturer part numbers on file: 65316-12008-105 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), MBC9568 (Mueller Die Cut Solutions, Llc Dba Sur-Seal, Llc).
Key specifications for MBC9568: Material Document and Classification: MIL-PRF-6855 CLASS 2,TYPE A, GR 70 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: RUBBER CHLOROPRENE CLASS CR OVERALL. 2 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.