The Packing with Retainer, cataloged under National Stock Number 5330-00-888-0256, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-888-0256 |
| Primary Part Number | 498750-259 |
| Item Name | Packing with Retainer |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. |
| Status | ACTIVE |
| Packing Inside Diameter | 0.176 INCHES NOMINAL IN |
| Outside Diameter | 0.438 INCHES MAXIMUM IN |
| Packing Ring Cross-Sectional Diameter | 0.050 INCHES NOMINAL IN |
| Material Document and Classification | MIL-R-6855 MIL SPEC SINGLE MATERIAL RESPONSE PACKING |
| Material Document and Classification | MIL-S-5059 TYPE 18-8 MIL SPEC SINGLE MATERIAL RESPONSE RETAINER |
| Retainer Thickness | 0.040 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC PACKING |
| Material | STEEL CORROSION RESISTING RETAINER |
| Construction | ONE-PIECE |
| 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 |
|---|---|
| 498750-259 PRIMARY | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA) |
NSN 5330-00-888-0256 is a Packing with Retainer, manufactured by L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-888-0256 has 1 manufacturer part number on file: 498750-259 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).
Key specifications for 498750-259: Packing Inside Diameter: 0.176 INCHES NOMINAL IN; Outside Diameter: 0.438 INCHES MAXIMUM IN; Packing Ring Cross-Sectional Diameter: 0.050 INCHES NOMINAL IN; Material Document and Classification: MIL-R-6855 MIL SPEC SINGLE MATERIAL RESPONSE PACKING. 9 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.