The Seal,mechanical, cataloged under National Stock Number 5330-00-263-9602, 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 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-263-9602 |
| Primary Part Number | CFSP52121 |
| Item Name | Seal,mechanical |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | John Crane, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 3.125 IN. MIN,3.135 IN. MAX OD,1.690 IN. W IN |
| 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 |
|---|---|
| CFSP52121 PRIMARY | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| C225S429X1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 10859C18 | 5/9 Secondary reference U.S. Government activity |
| CFSP52121 | 5/9 Secondary reference Wartsila Lips Inc |
| C225S429X1 | 5/9 Secondary reference John Crane, Inc |
NSN 5330-00-263-9602 is a Seal,mechanical, manufactured by John Crane, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-263-9602 has 1 manufacturer part number on file: CFSP52121 (John Crane, Inc).
Key specifications for CFSP52121: General Characteristics Item Description: 3.125 IN. MIN,3.135 IN. MAX OD,1.690 IN. W IN. 1 specification is 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.