The Filter,fluid, cataloged under National Stock Number 4330-01-221-7806, 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 Nelson Industries Inc Universal Silencer Div. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-221-7806 |
| Primary Part Number | CCS-21/2 |
| Item Name | Filter,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Nelson Industries Inc Universal Silencer Div |
| Status | ACTIVE |
| Filtration Rating in Microns | 2.0 NOMINAL |
| First Intake Nominal Thread Size | 2.500 INCHES IN |
| First Intake Thread Series Designator | NPT |
| Design Type | REUSABLE |
| Body Outside Diameter | 12.000 INCHES NOMINAL IN |
| First Intake Thread Direction | RIGHT-HAND |
| Body Height | 12.250 INCHES NOMINAL IN |
| First Intake Connection Type | THREADED INTERNAL PIPE BOTTOM |
| Filtering Element Quantity | 1 |
| Filtering System for Which Designed | FULL FLOW |
| First Discharge Connection Relationship to Intake Connection | NOT IDENTICAL |
| Material | STEEL BODY |
| Mounting Type | INLET CONNECTION BOTTOM |
| 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 |
|---|---|
| CCS-21/2 PRIMARY | Nelson Industries Inc Universal Silencer Div (USA) |
NSN 4330-01-221-7806 is a Filter,fluid, manufactured by Nelson Industries Inc Universal Silencer Div, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-221-7806 has 1 manufacturer part number on file: CCS-21/2 (Nelson Industries Inc Universal Silencer Div).
Key specifications for CCS-21/2: Filtration Rating in Microns: 2.0 NOMINAL; First Intake Nominal Thread Size: 2.500 INCHES IN; First Intake Thread Series Designator: NPT; Design Type: REUSABLE. 13 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.