The Seal,plain Encased, cataloged under National Stock Number 5330-01-406-1250, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-406-1250 |
| Primary Part Number | 6743928 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Case Style | FLANGED |
| Housing Bore Diameter | 1.875 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN |
| Accommodated Shaft Diameter | 2.105 INCHES MINIMUM AND 2.115 INCHES MAXIMUM IN |
| Seal Width | 0.302 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING SPRING |
| Sealing Element Style | VERTICAL-ANGULAR |
| Material | STEEL CORROSION RESISTING CASE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5330-01-406-1250 is a Seal,plain Encased, manufactured by Naval Sea Systems Command, classified under FSC 5330 (No Item Name Available). Status: active.
NSN 5330-01-406-1250 has 3 cross-referenced part numbers: 6743928 (Naval Sea Systems Command), 550397 (Vanseal Corp), EF90-172 (Crane John Inc).
There are 3 known substitutes for 5330-01-406-1250: 3110-00-151-8636, 5945-00-350-1998, 5995-00-812-0797. Verify interchangeability with system specifications before substitution.
Key specifications for 6743928: Case Style: FLANGED; Housing Bore Diameter: 1.875 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN; Accommodated Shaft Diameter: 2.105 INCHES MINIMUM AND 2.115 INCHES MAXIMUM IN; Seal Width: 0.302 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.