The Gasket, cataloged under National Stock Number 5330-01-346-3817, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Dover Fluid Management, Inc. Div Dover Resources Inc.. Government technical data includes 4 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-346-3817 |
| Primary Part Number | H06476M |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Dover Fluid Management, Inc. Div Dover Resources Inc. |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.250 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Outside Diameter | 4.880 INCHES NOMINAL IN |
| Aperture Diameter | 4.000 INCHES NOMINAL 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 |
|---|---|
| H06476M PRIMARY | Dover Fluid Management, Inc. Div Dover Resources Inc. (USA) |
| Reference | Meaning |
|---|---|
| 40GSKBUMS | 5/9 Secondary reference U.S. Government activity |
| 12380250 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| H6476M4 | 5/9 Secondary reference U.S. Government activity |
| H06476M | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
| H06476M | 3/9 Design control — primary reference U.S. Government activity |
NSN 5330-01-346-3817 is a Gasket, manufactured by Dover Fluid Management, Inc. Div Dover Resources Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-346-3817 has 1 manufacturer part number on file: H06476M (Dover Fluid Management, Inc. Div Dover Resources Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-409-1718. Verify interchangeability with system specifications before substitution.
Key specifications for H06476M: Cross-Sectional Thickness: 0.250 INCHES NOMINAL IN; Style Designator: CIRCULAR; Outside Diameter: 4.880 INCHES NOMINAL IN; Aperture Diameter: 4.000 INCHES NOMINAL IN. 4 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.