The Seal Assembly, cataloged under National Stock Number 5330-00-587-9508, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-587-9508 |
| Primary Part Number | H254-528 |
| Item Name | Seal Assembly |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | RUBBER SYNTHETIC /MOLYTHANE/ POLYPACK NO. 37505250 FSCM 30781,CONSISTS OF O-RING AND LIP TYPE SEAL,6 IN. DIA BORE IN |
| 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 |
|---|---|
| H254-528 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| S57552PP | 5/9 Secondary reference Logansport Machine Co., Inc. |
| H254-528 | 3/9 Design control — primary reference Hunt Valve Company, Inc. |
| S57552-5PC19 | 5/9 Secondary reference Logansport Machine Co., Inc. |
| 37505250-625 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5330-00-587-9508 is a Seal Assembly, manufactured by Hunt Valve Company, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-587-9508 has 1 manufacturer part number on file: H254-528 (Hunt Valve Company, Inc.).
Key specifications for H254-528: General Characteristics Item Description: RUBBER SYNTHETIC /MOLYTHANE/ POLYPACK NO. 37505250 FSCM 30781,CONSISTS OF O-RING AND LIP TYPE SEAL,6 IN. DIA BORE IN. 1 specification is 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.