The Packing with Retainer, cataloged under National Stock Number 5330-00-143-8722, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is C. E. Conover & Co., Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-143-8722 |
| Primary Part Number | CEC3427 |
| Item Name | Packing with Retainer |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | C. E. Conover & Co., Inc. |
| Status | ACTIVE |
| Retainer Inside Diameter | 0.250 INCHES NOMINAL IN |
| Packing Inside Diameter | 0.234 INCHES NOMINAL IN |
| Outside Diameter | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Packing Ring Cross-Sectional Diameter | 0.098 INCHES MAXIMUM IN |
| Material Document and Classification | -4601 FSCM 91547 MFR REF SINGLE MATERIAL RESPONSE PACKING |
| Material Document and Classification | AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE RETAINER |
| Retainer Thickness | 0.020 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC PACKING |
| Material | STEEL COMP 302 RETAINER |
| Construction | TWO-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 |
|---|---|
| CEC3427 | C. E. Conover & Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2-300-355-01 | 3/9 Design control — primary reference U.S. Government activity |
| 2-300-355-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-00-143-8722 is a Packing with Retainer, manufactured by C. E. Conover & Co., Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-143-8722 has 1 manufacturer part number on file: CEC3427 (C. E. Conover & Co., Inc.).
Key specifications for CEC3427: Retainer Inside Diameter: 0.250 INCHES NOMINAL IN; Packing Inside Diameter: 0.234 INCHES NOMINAL IN; Outside Diameter: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Packing Ring Cross-Sectional Diameter: 0.098 INCHES MAXIMUM IN. 10 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.