The Seal,plain Encased, cataloged under National Stock Number 5330-01-252-5304, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-252-5304 |
| Primary Part Number | 12354745-1 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Seal Width | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN |
| Sealing Element Style | VERTICAL |
| Housing Bore Diameter | 5.253 INCHES MINIMUM AND 5.258 INCHES MAXIMUM IN |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 3.787 INCHES MINIMUM AND 3.837 INCHES MAXIMUM IN |
| Material | STEEL CASE |
| Material | STEEL CORROSION RESISTING SPRING |
| Material | RUBBER SEALING ELEMENT |
| 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 |
|---|---|
| 12354745-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 387-525-16-11CW90 | 5/9 Secondary reference John Crane, Inc |
| 12354745-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-01-252-5304 is a Seal,plain Encased, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-252-5304 has 1 manufacturer part number on file: 12354745-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12354745-1: Seal Width: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN; Sealing Element Style: VERTICAL; Housing Bore Diameter: 5.253 INCHES MINIMUM AND 5.258 INCHES MAXIMUM IN; Case Style: SQUARE. 8 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.