The Seal,plain, cataloged under National Stock Number 5330-00-185-0053, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Johns Manville Intl. Government technical data includes 7 specifications, 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. 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 | 5330-00-185-0053 |
| Primary Part Number | 3879RPD |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Johns Manville Intl |
| Status | ACTIVE |
| Seal Width | 0.375 INCHES NOMINAL IN |
| Housing Bore Diameter | 2.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SINGLE LIP |
| Accommodated Shaft Diameter | 2.000 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING 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 |
NSN 5330-00-185-0053 is a Seal,plain, manufactured by Johns Manville Intl, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-185-0053 has 2 manufacturer part numbers on file: JM3879 (Johns Manville Intl), 3879RPD (Johns Manville Intl).
1 possible match (shared part number, not a government interchangeability claim): 5330-00-759-3973. Verify interchangeability with system specifications before substitution.
Key specifications for 3879RPD: Seal Width: 0.375 INCHES NOMINAL IN; Housing Bore Diameter: 2.750 INCHES NOMINAL IN; Cross-Sectional Shape Style: SINGLE LIP; Accommodated Shaft Diameter: 2.000 INCHES NOMINAL 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.