The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-00-334-5129, 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 Unison Industries Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4920-00-334-5129 |
| Primary Part Number | 11-4270 |
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Unison Industries Llc |
| Status | ACTIVE |
| Functional Description | USED WITH PRY TOOL P/N 11-4290 TO REMOVE COVER OF IGNITION EXCITER UNIT P/N 10-111150-1 AND 10-111160-1,-3 |
| 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 |
|---|---|
| 11-4270 PRIMARY | Unison Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 11-4270 | 5/9 Secondary reference Amphenol Corp Div Amphenol Aerospace Operations |
NSN 4920-00-334-5129 is a Fixture,aircraft Maintenance, manufactured by Unison Industries Llc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-334-5129 has 1 manufacturer part number on file: 11-4270 (Unison Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-280-8869. Verify interchangeability with system specifications before substitution.
Key specifications for 11-4270: Functional Description: USED WITH PRY TOOL P/N 11-4290 TO REMOVE COVER OF IGNITION EXCITER UNIT P/N 10-111150-1 AND 10-111160-1,-3; End Item Identification: ALLISON T56 ENGINES. 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.