The Packing,preformed, cataloged under National Stock Number 5330-00-239-2856, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-239-2856 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Cross-Sectional Height | 0.438 INCHES NOMINAL IN |
| Hardness Rating | 88.0 SHORE DUROMETER A NOMINAL OVERALL |
| Material Document and Classification | MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Peripheral Diameter | 5.953 INCHES NOMINAL IN |
| Center Hole Diameter | 4.938 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| S12724ALT2 | 3/2 Design control — primary reference U.S. Government activity |
| 419-4105A934844PCT3 | 3/2 Design control — primary reference U.S. Government activity |
| 425-4105A723881ALT5PCT3 | 3/2 Design control — primary reference U.S. Government activity |
| 4810-770701ALT1PC24 | 3/2 Design control — primary reference U.S. Government activity |
| 482-4105A721579ALT3PCX3 | 3/2 Design control — primary reference U.S. Government activity |
| 2121-487PCX3 | 3/2 Design control — primary reference U.S. Government activity |
| 2121-425PCT3 | 3/2 Design control — primary reference U.S. Government activity |
| 2121-482PCX3 | 3/2 Design control — primary reference U.S. Government activity |
| 2121-419PCT3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-00-239-2856 is a Packing,preformed, classified under FSC 5330, Packing and Gasket Materials. Status: active.
Key specifications for 5330-00-239-2856: Cross-Sectional Height: 0.438 INCHES NOMINAL IN; Hardness Rating: 88.0 SHORE DUROMETER A NOMINAL OVERALL; Material Document and Classification: MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Peripheral Diameter: 5.953 INCHES NOMINAL IN. 6 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.