The Seal,plain Encased, cataloged under National Stock Number 5330-00-159-9577, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Harnischfeger Corp Portal Crane Parts Div. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-159-9577 |
| Primary Part Number | D1397-MK-A ITEM 24 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Harnischfeger Corp Portal Crane Parts Div |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF |
| Seal Width | 0.750 INCHES NOMINAL IN |
| Sealing Element Style | ANGULAR |
| Housing Bore Diameter | 9.250 INCHES NOMINAL IN |
| Accommodated Shaft Maximum Rated Speed | 3600 FEET PER MINUTE FT |
| Case Style | SQUARE |
| Accommodated Shaft Diameter | 7.750 INCHES NOMINAL IN |
| Material | STEEL CASE |
| Material | RUBBER SYNTHETIC 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 |
|---|---|
| D1397-MK-A ITEM 24 PRIMARY | Harnischfeger Corp Portal Crane Parts Div (USA) |
| Reference | Meaning |
|---|---|
| 77551-P2 | 5/9 Secondary reference U.S. Government activity |
| 00044 | 5/1 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| 77551 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-00-159-9577 is a Seal,plain Encased, manufactured by Harnischfeger Corp Portal Crane Parts Div, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-159-9577 has 1 manufacturer part number on file: D1397-MK-A ITEM 24 (Harnischfeger Corp Portal Crane Parts Div).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-330-0612. Verify interchangeability with system specifications before substitution.
Key specifications for D1397-MK-A ITEM 24: Temp Rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF; Seal Width: 0.750 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Housing Bore Diameter: 9.250 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.