The Filter,fluid, cataloged under National Stock Number 4330-01-161-6620, 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 Oerlikon Metco Us Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-161-6620 |
| Primary Part Number | 4A100 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Oerlikon Metco Us Inc |
| Status | ACTIVE |
| First Discharge Connection Type | THREADED INTERNAL PIPE END |
| Body Outside Diameter | 1.250 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL PIPE END |
| Body Length | 3.000 INCHES NOMINAL IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | AIR |
| Material | STEEL CORROSION RESISTING SCREENING |
| Material | GLASS FIBER SEDIMENT BOWL |
| Second Intake Connection Relationship to First Intake Connection | IDENTICAL |
| 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 |
|---|---|
| 4A100 PRIMARY | Oerlikon Metco Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 4A100 | 3/9 Design control — primary reference Metco Inc Sub of the Perkin-Elmer Corp |
NSN 4330-01-161-6620 is a Filter,fluid, manufactured by Oerlikon Metco Us Inc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-161-6620 has 1 manufacturer part number on file: 4A100 (Oerlikon Metco Us Inc).
Key specifications for 4A100: First Discharge Connection Type: THREADED INTERNAL PIPE END; Body Outside Diameter: 1.250 INCHES NOMINAL IN; First Intake Connection Type: THREADED INTERNAL PIPE END; Body Length: 3.000 INCHES NOMINAL IN. 9 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.