The Filter,fluid, cataloged under National Stock Number 4330-01-356-0850, 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 Highland Engineering, Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4330-01-356-0850 |
| Primary Part Number | 701-FF-RK |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Highland Engineering, Inc. |
| Status | ACTIVE |
| Filtering Media Design | MESH SINGLE FILTERING MEDIA RESPONSE |
| Body Diameter | 3.130 INCHES NOMINAL IN |
| Body Overall Length | 5.166 INCHES NOMINAL IN |
| Style Designator | CYLINDRICAL W/ INTEGRAL OUTER CASING |
| Operating Pressure | 90.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Nominal Thread Size | 0.375 INCHES IN |
| Thread Series Designator | NPT |
| Mounting Type | THREADED HOLE TOP |
| 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 |
|---|---|
| 701-FF-RK PRIMARY | Highland Engineering, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 12706-02-20-0030 | 5/9 Secondary reference Solventum Purification Inc. Div Filtration and Separation Division |
| 12706-02-20-0035 | 5/9 Secondary reference Solventum Purification Inc. Div Filtration and Separation Division |
| CUNO-DS | 5/1 Secondary reference Solventum Purification Inc. Div Filtration and Separation Division |
| 6-1-8040 | D/9 Drawing number reference only U.S. Government activity |
NSN 4330-01-356-0850 is a Filter,fluid, manufactured by Highland Engineering, Inc., classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-356-0850 has 1 manufacturer part number on file: 701-FF-RK (Highland Engineering, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-584-7183. Verify interchangeability with system specifications before substitution.
Key specifications for 701-FF-RK: Filtering Media Design: MESH SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 3.130 INCHES NOMINAL IN; Body Overall Length: 5.166 INCHES NOMINAL IN; Style Designator: CYLINDRICAL W/ INTEGRAL OUTER CASING. 8 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.