The Seal,plain Encased, cataloged under National Stock Number 5330-00-890-0261, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Eaton Corporation Dba Eaton Inoac Div Eaton. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5330-00-890-0261 |
| Primary Part Number | Y54X0270 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Eaton Corporation Dba Eaton Inoac Div Eaton |
| Status | ACTIVE |
| Attachment Hole Diameter | 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN |
| Attachment Feature Quantity | 6 |
| Temp Rating | -65.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF |
| Seal Width | 0.360 INCHES NOMINAL IN |
| Sealing Element Style | ANGULAR-OPPOSED |
| Housing Bore Diameter | 3.680 INCHES MINIMUM AND 3.720 INCHES MAXIMUM IN |
| Accommodated Shaft Maximum Rated Speed | 2543 FEET PER MINUTE FT |
| Case Style | SHOULDERED |
| Attachment Feature Circle Diameter | 3.300 INCHES NOMINAL SINGLE CIRCLE IN |
| Accommodated Shaft Diameter | 1.311 INCHES MINIMUM AND 1.313 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING CASE |
| 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 |
|---|---|
| Y54X0270 PRIMARY | Eaton Corporation Dba Eaton Inoac Div Eaton (USA) |
| Reference | Meaning |
|---|---|
| 362951-1 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5330-00-890-0261 is a Seal,plain Encased, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-890-0261 has 1 manufacturer part number on file: Y54X0270 (Eaton Corporation Dba Eaton Inoac Div Eaton).
Key specifications for Y54X0270: Attachment Hole Diameter: 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN; Attachment Feature Quantity: 6; Temp Rating: -65.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF; Seal Width: 0.360 INCHES NOMINAL IN. 12 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.