The Seal,plain Encased, cataloged under National Stock Number 5330-01-498-5061, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Spicer Speciality Axle Division. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-498-5061 |
| Primary Part Number | R9995/187 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Spicer Speciality Axle Division |
| Status | ACTIVE |
| Seal Width | 0.438 INCHES NOMINAL IN |
| Sealing Element Style | ANGULAR |
| Outside Diameter | 3.756 INCHES NOMINAL IN |
| Housing Bore Diameter | 3.751 INCHES NOMINAL IN |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 2.750 INCHES NOMINAL IN |
| Surface Treatment | PLASTIC CASE |
| Material | RUBBER FLUOROCARBON CLASS FPM SEALING ELEMENT |
| Material | STEEL COMP 304 CASE |
| 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 |
|---|---|
| R9995/187 | Spicer Speciality Axle Division (GBR) |
| Reference | Meaning |
|---|---|
| 27365 | 3/2 Design control — primary reference U.S. Government activity |
| CR544051-85 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-01-498-5061 is a Seal,plain Encased, manufactured by Spicer Speciality Axle Division, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-498-5061 has 1 manufacturer part number on file: R9995/187 (Spicer Speciality Axle Division).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-728-7837. Verify interchangeability with system specifications before substitution.
Key specifications for R9995/187: Seal Width: 0.438 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Outside Diameter: 3.756 INCHES NOMINAL IN; Housing Bore Diameter: 3.751 INCHES NOMINAL IN. 9 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.