The Seal,plain Encased, cataloged under National Stock Number 5330-01-435-7333, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Howden American Fan Company Dba American Fan Co Div Howden Usa Company. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Fm Af, Llc Dba American Fan Company (CAGE 75477); Howden American Fan Company Dba American Fan Co Div Howden Usa Company (CAGE 53555) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-435-7333 |
| Primary Part Number | 415028001Y |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Howden American Fan Company Dba American Fan Co Div Howden Usa Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 706528-628 ITEM 16 | Fm Af, Llc Dba American Fan Company (USA) |
| 415028001Y PRIMARY | Howden American Fan Company Dba American Fan Co Div Howden Usa Company (USA) |
| Reference | Meaning |
|---|---|
| 415028-1-V | 3/9 Design control — primary reference Reliance Electric |
| 706528-628 ITEM 16 | 5/9 Secondary reference Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
NSN 5330-01-435-7333 is a Seal,plain Encased, manufactured by Howden American Fan Company Dba American Fan Co Div Howden Usa Company, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-435-7333 has 2 manufacturer part numbers on file: 706528-628 ITEM 16 (Fm Af, Llc Dba American Fan Company), 415028001Y (Howden American Fan Company Dba American Fan Co Div Howden Usa Company).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-699-8982. Verify interchangeability with system specifications before substitution.
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.