The Heater,aircraft Engine Maintenan, cataloged under National Stock Number 4920-00-137-6916, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Axillon Aerospace (rockmart), Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-00-137-6916 |
| Primary Part Number | 2F1-3-25721-1 |
| Item Name | Heater,aircraft Engine Maintenan |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Axillon Aerospace (rockmart), Llc |
| Status | ACTIVE |
| Overall Diameter | 3.620 INCHES NOMINAL IN |
| Reference Data and Literature | SERD NO. 0937; TO 1F-15A-4-6 A |
| Functional Description | USED TO APPLY HEAT AT A TEMPERATURE OF 240 DEGREES AND IS USED TO REPAIR DAMAGED SECTIONS 2, 3A, AND 3B INTERNAL FUEL CELLS A |
| 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 |
|---|---|
| 2F1-3-25721-1 PRIMARY | Axillon Aerospace (rockmart), Llc (USA) |
| Reference | Meaning |
|---|---|
| 2F1-3-25721-1 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
NSN 4920-00-137-6916 is a Heater,aircraft Engine Maintenan, manufactured by Axillon Aerospace (rockmart), Llc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-137-6916 has 1 manufacturer part number on file: 2F1-3-25721-1 (Axillon Aerospace (rockmart), Llc).
Key specifications for 2F1-3-25721-1: Overall Height: 3.000 INCHES NOMINAL IN; Overall Diameter: 3.620 INCHES NOMINAL IN; Reference Data and Literature: SERD NO. 0937; TO 1F-15A-4-6 A; Special Features: INCLUDES HEAT ELEMENT; 2.0LBS LBS. 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 4920-00-137-6916 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.