The Seal,plain, cataloged under National Stock Number 5330-01-549-8210, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-549-8210 |
| Primary Part Number | HS4028-B |
| Item Name | Seal,plain |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Supplementary Features | DIMENSIONS: WIDTH: 0.50", HEIGHT: 0.38", OUTER SKIN: 0.062", OVERALL LENGTH: 100 FEET FT |
| Material | PLASTIC OVERALL |
| Construction | ONE-PIECE |
| 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 |
|---|---|
| HS4028-B | The Boeing Company Div Services (USA) |
| HS4028 | The Boeing Company (USA) |
| HS4028-B PRIMARY | The Boeing Company (USA) |
| HS4028-B | West American Rubber Company, Llc. Dba West American Rubber Co Llc (USA) |
| Reference | Meaning |
|---|---|
| HS4028B | 3/9 Design control — primary reference Rubbercraft Corporation of California, Ltd Dba Rubber Teck Division Use CAGE Code 77969 for Cataloging |
| HS4028B | C/1 Advisory reference — outside the item-of-supply concept Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp |
| RM016025 | 5/9 Secondary reference The Boeing Company |
NSN 5330-01-549-8210 is a Seal,plain, manufactured by The Boeing Company, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-549-8210 has 4 manufacturer part numbers on file: HS4028-B (The Boeing Company Div Services), HS4028 (The Boeing Company), HS4028-B (The Boeing Company), HS4028-B (West American Rubber Company, Llc. Dba West American Rubber Co Llc).
Key specifications for HS4028-B: Supplementary Features: DIMENSIONS: WIDTH: 0.50", HEIGHT: 0.38", OUTER SKIN: 0.062", OVERALL LENGTH: 100 FEET FT; Special Features: MATERIAL: ETHYLENE PROPYLENE TERPOLYMER PER HMS 16-1086,SHORE A HARDNESS 45 TO 55; End Item Identification: APACHE ATTACK HELICOPTER; Material: PLASTIC OVERALL. 3 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.