The Seal,plain Encased, cataloged under National Stock Number 5330-01-140-3756, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-140-3756 |
| Primary Part Number | 502AS2457 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Seal Width | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Sealing Element Style | VERTICAL-ANGULAR |
| Case Style | RECESSED |
| Accommodated Shaft Diameter | 0.625 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING CASE |
| Attachment Method | CEMENTED |
| 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 |
|---|---|
| 502AS2457 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 526011 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-140-3756 is a Seal,plain Encased, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-140-3756 has 1 manufacturer part number on file: 502AS2457 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-399-4892. Verify interchangeability with system specifications before substitution.
Key specifications for 502AS2457: Seal Width: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN; Sealing Element Style: VERTICAL-ANGULAR; Case Style: RECESSED; Accommodated Shaft Diameter: 0.625 INCHES NOMINAL IN. 6 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.