The Arbor Balancing,pump Assembly, cataloged under National Stock Number 4920-01-137-2851, 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 Honeywell International Inc. Div Aerospace - Torrance. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-137-2851 |
| Primary Part Number | 279176-1-1 |
| Item Name | Arbor Balancing,pump Assembly |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Functional Description | PROVIDES A PRECISION BALANCE FOR THE PUMP IMPELLER,UNBALANCE SHALL NOT EXCEED 0.005 GRAM IN.; MOUNTING DIA OF 0.2002 TO 0.2003 IN.; IN ADDITION TO THE WHEEL MTG DIA,THE ARBOR WILL INCLUDE A TAPERED LEAD TO PROPERLY START THE WHEEL ON THE MTG DIA,A SHOULDER TO ACT AS A STOP AND END BEARING SURFACES TO INTERFACE W/THE BALANCING MACHINE SUPPORT INSERTS G |
| 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 |
|---|---|
| 279176-1-1 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
NSN 4920-01-137-2851 is a Arbor Balancing,pump Assembly, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-137-2851 has 1 manufacturer part number on file: 279176-1-1 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 279176-1-1: Functional Description: PROVIDES A PRECISION BALANCE FOR THE PUMP IMPELLER,UNBALANCE SHALL NOT EXCEED 0.005 GRAM IN.; MOUNTING DIA OF 0.2002 TO 0.2003 IN.; IN ADDITION TO THE WHEEL MTG DIA,THE ARBOR WILL INCLUDE A TAPERED LEAD TO PROPERLY START THE WHEEL ON THE MTG DIA,A SHOULDER TO ACT AS A STOP AND END BEARING SURFACES TO INTERFACE W/THE BALANCING MACHINE SUPPORT INSERTS G; Part Name Assigned by Controlling Agency: BALANCING ARBOR; End Item Identification: EF-111A A. 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.