The Block,support,exciter, cataloged under National Stock Number 2925-00-371-2256, is classified within Federal Supply Class 2925 (Engine Electrical System Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Unison Industries Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2925-00-371-2256 |
| Primary Part Number | 99846 |
| Item Name | Block,support,exciter |
| FSC / FSG | 2925 / 29 — Engine Electrical System Components, Aircraft Prime Moving |
| Manufacturer | Unison Industries Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 99846 PRIMARY | Unison Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 99846 | 5/9 Secondary reference U.S. Government activity |
NSN 2925-00-371-2256 is a Block,support,exciter, manufactured by Unison Industries Llc, classified under FSC 2925, Engine Electrical System Components, Aircraft Prime Moving. Status: active.
NSN 2925-00-371-2256 has 1 manufacturer part number on file: 99846 (Unison Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 5305-00-867-6713. Verify interchangeability with system specifications before substitution.
Key specifications for 99846: End Item Identification: ENGINE,ACFT,TURBOFAN,MODEL F100. 0 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 2925-00-371-2256 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.