The Retainer,packing, cataloged under National Stock Number 5330-01-377-9855, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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 | 5330-01-377-9855 |
| Primary Part Number | 563-6404329-43 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.529 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN |
| Attachment Feature Quantity | 4 |
| Cross-Sectional Height | 0.810 INCHES NOMINAL IN |
| Material Document and Classification | QQ-C-390, TY 3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Attachment Feature Circle Diameter | 3.187 INCHES NOMINAL SINGLE CIRCLE IN |
| Peripheral Diameter | 4.120 INCHES NOMINAL IN |
| Center Hole Diameter | 1.875 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 903 OVERALL |
| Attachment Method | ROUND HOLE |
| 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 |
|---|---|
| 563-6404329-43 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5330-01-377-9855 is a Retainer,packing, manufactured by Naval Sea Systems Command, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-377-9855 has 1 manufacturer part number on file: 563-6404329-43 (Naval Sea Systems Command).
Key specifications for 563-6404329-43: Attachment Hole Diameter: 0.529 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN; Attachment Feature Quantity: 4; Cross-Sectional Height: 0.810 INCHES NOMINAL IN; Material Document and Classification: QQ-C-390, TY 3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.