The Bypass Assembly,filter, cataloged under National Stock Number 4330-01-286-9398, 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 Rtx Corporation Div Pratt & Whitney. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-286-9398 |
| Primary Part Number | 4900037 |
| Item Name | Bypass Assembly,filter |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM; 2.823 IN. O/A LENGTH; 1.330 IN DIA IN |
| 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 |
|---|---|
| 4900037 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| ACB690F25BV PRIMARY | Pall Aeropower Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1743680 | 5/2 Secondary reference U.S. Government activity |
NSN 4330-01-286-9398 is a Bypass Assembly,filter, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-286-9398 has 2 manufacturer part numbers on file: 4900037 (Rtx Corporation Div Pratt & Whitney), ACB690F25BV (Pall Aeropower Corporation).
Key specifications for 4900037: General Characteristics Item Description: ALUMINUM; 2.823 IN. O/A LENGTH; 1.330 IN DIA IN. 1 specification is 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.