The Seal,plain Encased, cataloged under National Stock Number 5330-01-508-2857, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Transcom Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-508-2857 |
| Primary Part Number | 15253TB |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Transcom Inc |
| Status | ACTIVE |
| Temp Rating | -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Seal Width | 0.312 INCHES NOMINAL IN |
| Sealing Element Style | ANGULAR-OPPOSED |
| Housing Bore Diameter | 2.500 INCHES NOMINAL IN |
| Case Style | RECESSED |
| Accommodated Shaft Diameter | 1.500 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT A |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT B |
| Material | CARBON CASE |
| Material | CARBON SPRING |
| 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 |
|---|---|
| 15253TB | Transcom Inc (USA) |
| Reference | Meaning |
|---|---|
| 46912-000 | 3/9 Design control — primary reference Winco, Inc. |
NSN 5330-01-508-2857 is a Seal,plain Encased, manufactured by Transcom Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-508-2857 has 1 manufacturer part number on file: 15253TB (Transcom Inc).
Key specifications for 15253TB: Temp Rating: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Seal Width: 0.312 INCHES NOMINAL IN; Sealing Element Style: ANGULAR-OPPOSED; Housing Bore Diameter: 2.500 INCHES NOMINAL IN. 10 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.