The Seal Assembly, cataloged under National Stock Number 5330-01-020-2925, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-020-2925 |
| Primary Part Number | HSP-4262-2 |
| Item Name | Seal Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | John Crane, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | RUBBER,SYNTHETIC AND CRES,CONSISTS OF 9 ITEMS,MATING RING,O RING,PRIMARY SEALING RING,FLEXIBLE DIAPHRAGM,RETAINER,DRIVE RING,SPRING AND SPRING HOLDER,2.343 IN. W. 1.500 IN. BORE DIA,0.875 IN. SHAFT DIA 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 |
|---|---|
| TYPE 21 .875 | John Crane, Inc (USA) |
| HSP-4262-2 PRIMARY | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| 1050 | 5/9 Secondary reference Jackson Products Co |
| 82682SA PIECE 2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| HSP-4262-2TY21SZ.875BF50M08M | 5/9 Secondary reference Wartsila Lips Inc |
| HSP-4262-2 | 3/9 Design control — primary reference Wartsila Lips Inc |
| HSP-4262-2TY21SZ.875BF50M08M | 5/9 Secondary reference John Crane, Inc |
NSN 5330-01-020-2925 is a Seal Assembly, manufactured by John Crane, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-020-2925 has 2 manufacturer part numbers on file: TYPE 21 .875 (John Crane, Inc), HSP-4262-2 (John Crane, Inc).
Key specifications for HSP-4262-2: General Characteristics Item Description: RUBBER,SYNTHETIC AND CRES,CONSISTS OF 9 ITEMS,MATING RING,O RING,PRIMARY SEALING RING,FLEXIBLE DIAPHRAGM,RETAINER,DRIVE RING,SPRING AND SPRING HOLDER,2.343 IN. W. 1.500 IN. BORE DIA,0.875 IN. SHAFT DIA 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.