The Seal,plain Encased, cataloged under National Stock Number 5330-01-064-4100, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is John Crane, Inc. Government technical data includes 6 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 | 5330-01-064-4100 |
| Primary Part Number | CB237-23 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | John Crane, Inc |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND -250.0 FAHRENHEIT DEGF |
| Seal Width | 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Housing Bore Diameter | 1.561 INCHES MINIMUM AND 1.563 INCHES MAXIMUM IN |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 1.059 INCHES MINIMUM AND 1.065 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING AND RUBBER SYNTHETIC CASE |
| 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 |
|---|---|
| CB237-23 PRIMARY | John Crane, Inc (USA) |
NSN 5330-01-064-4100 is a Seal,plain Encased, manufactured by John Crane, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-064-4100 has 1 manufacturer part number on file: CB237-23 (John Crane, Inc).
Key specifications for CB237-23: Temp Rating: -65.0 FAHRENHEIT AND -250.0 FAHRENHEIT DEGF; Seal Width: 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN; Housing Bore Diameter: 1.561 INCHES MINIMUM AND 1.563 INCHES MAXIMUM IN; Case Style: SQUARE. 6 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.