The Filter,fluid, cataloged under National Stock Number 4330-01-200-0891, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Industrial Service and Supply, Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-200-0891 |
| Primary Part Number | 535655A1 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Industrial Service and Supply, Inc |
| Status | ACTIVE |
| Design Type | LIMITED |
| Operating Pressure | 275.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Filtering Element Quantity | 1 |
| Media for Which Designed | AIR |
| Material | STEEL FILTERING MEDIUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 535655A1 PRIMARY | Industrial Service and Supply, Inc (USA) |
| H5321436-A1 PIECE 11 | Industrial Service and Supply, Inc (USA) |
| Reference | Meaning |
|---|---|
| H5321436-A1 | D/9 Drawing number reference only Elsag Bailey Inc |
| H5321436-A1 | D/9 Drawing number reference only Industrial Service and Supply, Inc |
| H5321436-A1 PIECE 11 | 5/9 Secondary reference Elsag Bailey Inc |
| 535655A1 | 5/9 Secondary reference Elsag Bailey Inc |
NSN 4330-01-200-0891 is a Filter,fluid, manufactured by Industrial Service and Supply, Inc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-200-0891 has 2 manufacturer part numbers on file: 535655A1 (Industrial Service and Supply, Inc), H5321436-A1 PIECE 11 (Industrial Service and Supply, Inc).
4 possible matches (shared part number, not a government interchangeability claim): 4330-01-200-0892, 4330-01-200-0946, 4330-01-200-5644. Verify interchangeability with system specifications before substitution.
Key specifications for 535655A1: Design Type: LIMITED; Operating Pressure: 275.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS; Filtering Element Quantity: 1; Media for Which Designed: AIR. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.