The Retainer,packing, cataloged under National Stock Number 5330-01-021-0834, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Aimtron Systems, Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-021-0834 |
| Primary Part Number | 503458 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Aimtron Systems, Llc |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.164 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| Attachment Feature Quantity | 8 |
| Cross-Sectional Thickness | 0.094 INCHES NOMINAL IN |
| Cross-Sectional Height | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763 COMP 303 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | FLANGE |
| Attachment Feature Circle Diameter | 5.062 INCHES NOMINAL FIRST CIRCLE IN |
| Flanged Body Outside Diameter | 3.497 INCHES MINIMUM AND 3.503 INCHES MAXIMUM IN |
| Peripheral Diameter | 5.562 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Center Hole Diameter | 3.302 INCHES MINIMUM AND 3.322 INCHES MAXIMUM IN |
| Material | STEEL COMP 303 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 |
|---|---|
| 503458 PRIMARY | Aimtron Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 503458 | 5/9 Secondary reference Cardion Inc |
NSN 5330-01-021-0834 is a Retainer,packing, manufactured by Aimtron Systems, Llc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-021-0834 has 1 manufacturer part number on file: 503458 (Aimtron Systems, Llc).
Key specifications for 503458: Attachment Hole Diameter: 0.164 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Attachment Feature Quantity: 8; Cross-Sectional Thickness: 0.094 INCHES NOMINAL IN; Cross-Sectional Height: 0.375 INCHES NOMINAL IN. 13 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.