The Seal,plain, cataloged under National Stock Number 5330-00-925-9688, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Vanseal Corp. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-925-9688 |
| Primary Part Number | CB126-23 |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Vanseal Corp |
| Status | ACTIVE |
| Seal Width | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN |
| Housing Bore Diameter | 4.748 INCHES MINIMUM AND 4.751 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | DUAL LIP |
| Accommodated Shaft Diameter | 3.748 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN |
| Material | STEEL SPRING |
| Material | RUBBER SYNTHETIC SEALING ELEMENT |
| Construction | SOLID |
| 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 |
|---|---|
| 65103-11005-101 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| CB126-23 PRIMARY | Vanseal Corp (USA) |
| CB126-23 PRIMARY | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| 515360-40 | 5/9 Secondary reference U.S. Government activity |
| 515360 | 3/2 Design control — primary reference U.S. Government activity |
| 515360 | 5/9 Secondary reference Precision Seals Inc |
| 80-515360 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-00-925-9688 is a Seal,plain, manufactured by Vanseal Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-925-9688 has 3 manufacturer part numbers on file: 65103-11005-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), CB126-23 (Vanseal Corp), CB126-23 (John Crane, Inc).
1 possible match (shared part number, not a government interchangeability claim): 4520-01-561-1622. Verify interchangeability with system specifications before substitution.
Key specifications for CB126-23: Seal Width: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN; Housing Bore Diameter: 4.748 INCHES MINIMUM AND 4.751 INCHES MAXIMUM IN; Cross-Sectional Shape Style: DUAL LIP; Accommodated Shaft Diameter: 3.748 INCHES MINIMUM AND 3.752 INCHES MAXIMUM IN. 7 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.