The Retainer,packing, cataloged under National Stock Number 5330-01-309-4620, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-309-4620 |
| Primary Part Number | 424493-1 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Cross-Sectional Height | 1.000 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | V |
| Peripheral Diameter | 4.748 INCHES MINIMUM AND 4.750 INCHES MAXIMUM IN |
| Center Hole Diameter | 4.003 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 861 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 |
|---|---|
| 424493-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 424493-1 | 5/2 Secondary reference U.S. Government activity |
| 424493-2 | 5/9 Secondary reference Kocsis Technologies Inc Dba Kocsis Technologies Inc |
NSN 5330-01-309-4620 is a Retainer,packing, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-309-4620 has 1 manufacturer part number on file: 424493-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
2 possible matches (shared part number, not a government interchangeability claim): 1630-01-338-4605, 1630-01-338-4606. Verify interchangeability with system specifications before substitution.
Key specifications for 424493-1: Cross-Sectional Height: 1.000 INCHES NOMINAL IN; Cross-Sectional Shape Style: V; Peripheral Diameter: 4.748 INCHES MINIMUM AND 4.750 INCHES MAXIMUM IN; Special Features: CHAMFER 0.062 IN. X 45 DEG IN. 5 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.