The Diaphragm,fuel Control, cataloged under National Stock Number 2915-00-439-3897, is classified within Federal Supply Class 2915 (Engine Fuel System Components, Aircraft and Missile Prime Movers) of the Engine Accessories group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2915-00-439-3897 |
| Primary Part Number | 858556 |
| Item Name | Diaphragm,fuel Control |
| FSC / FSG | 2915 / 29 — Engine Fuel System Components, Aircraft and Missile Prime Movers |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| General Characteristics Item Description | SYNTHETIC RUBBER ES-0476,0.541 IN. MIN 0.551 IN. MAX O/A DIA,0.085 IN. MIN 0.095 IN. MAX O/A THK IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 858556 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
| 116706-06848 PRIMARY | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| Reference | Meaning |
|---|---|
| 116706 | 5/9 Secondary reference Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
NSN 2915-00-439-3897 is a Diaphragm,fuel Control, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 2915, Engine Fuel System Components, Aircraft and Missile Prime Movers. Status: active.
NSN 2915-00-439-3897 has 2 manufacturer part numbers on file: 858556 (Curtiss-Wright Controls, Inc. Div Actuation Division), 116706-06848 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)).
1 possible match (shared part number, not a government interchangeability claim): 2805-00-625-6275. Verify interchangeability with system specifications before substitution.
Key specifications for 858556: General Characteristics Item Description: SYNTHETIC RUBBER ES-0476,0.541 IN. MIN 0.551 IN. MAX O/A DIA,0.085 IN. MIN 0.095 IN. MAX O/A THK IN; End Item Identification: FUEL CONTROL PART NO. 330015. 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.
NSN 2915-00-439-3897 has DEMIL Code B. 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.