The Diaphragm,oil Cooler, cataloged under National Stock Number 2935-00-371-5877, is classified within Federal Supply Class 2935 (Engine System Cooling Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Bellofram Corporation. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2935-00-371-5877 |
| Primary Part Number | 3-200-44CSF1 |
| Item Name | Diaphragm,oil Cooler |
| FSC / FSG | 2935 / 29 — Engine System Cooling Components, Aircraft Prime Moving |
| Manufacturer | Bellofram Corporation |
| Status | ACTIVE |
| FSC Application Data | COOLER,LUBRICATING OIL,ACFT ENGINE MODEL F100PW100 |
| General Characteristics Item Description | 2.550 IN. DIA,0.440 IN. THK IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY P/N U534242,FSCM 78943 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| U534242 | Triumph Thermal Systems, Llc (USA) |
| 3-200-44CSF1 | Bellofram Corporation (USA) |
NSN 2935-00-371-5877 is a Diaphragm,oil Cooler, manufactured by Bellofram Corporation, classified under FSC 2935, Engine System Cooling Components, Aircraft Prime Moving. Status: active.
NSN 2935-00-371-5877 has 2 manufacturer part numbers on file: U534242 (Triumph Thermal Systems, Llc), 3-200-44CSF1 (Bellofram Corporation).
Key specifications for 3-200-44CSF1: FSC Application Data: COOLER,LUBRICATING OIL,ACFT ENGINE MODEL F100PW100; General Characteristics Item Description: 2.550 IN. DIA,0.440 IN. THK IN; End Item Identification: P/N UA535950-2,FSCM 78943; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY P/N U534242,FSCM 78943. 3 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.
NSN 2935-00-371-5877 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.