The Retainer,packing, cataloged under National Stock Number 5330-00-899-2572, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-899-2572 |
| Primary Part Number | 203190B |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.043 INCHES MAXIMUM IN |
| Attachment Feature Quantity | 6 |
| Cross-Sectional Height | 0.098 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Attachment Feature Circle Diameter | 6.875 INCHES NOMINAL RETAINER IN |
| Peripheral Diameter | 7.000 INCHES NOMINAL IN |
| Center Hole Diameter | 6.750 INCHES NOMINAL IN |
| Material | IRON OVERALL |
| Joint Type | LOCK RETAINER |
| 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 |
|---|---|
| 203190B PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
NSN 5330-00-899-2572 is a Retainer,packing, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-899-2572 has 1 manufacturer part number on file: 203190B (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
Key specifications for 203190B: Attachment Hole Diameter: 0.043 INCHES MAXIMUM IN; Attachment Feature Quantity: 6; Cross-Sectional Height: 0.098 INCHES NOMINAL IN; Cross-Sectional Shape Style: SQUARE/RECTANGULAR. 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.