The Retainer,packing, cataloged under National Stock Number 5330-00-030-4423, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-030-4423 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.199 INCHES NOMINAL IN |
| Cross-Sectional Height | 1.290 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | FLANGED |
| Flanged Body Outside Diameter | 5.400 INCHES NOMINAL IN |
| Peripheral Diameter | 5.874 INCHES NOMINAL IN |
| Center Hole Diameter | 5.002 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OVERALL |
| Body Recess Depth | 0.560 INCHES NOMINAL IN |
| 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 |
|---|---|
| 4-80031 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-00-030-4423 is a Retainer,packing, classified under FSC 5330, Packing and Gasket Materials. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5910-00-728-4087, 2920-00-992-0908, 4310-01-660-0401. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-00-030-4423: Cross-Sectional Thickness: 0.199 INCHES NOMINAL IN; Cross-Sectional Height: 1.290 INCHES NOMINAL IN; Cross-Sectional Shape Style: FLANGED; Flanged Body Outside Diameter: 5.400 INCHES NOMINAL IN. 8 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.