PartsTable TECHNICAL DATA SHEET
NSN 4920-01-149-0257Government record, cited

Fixture, Engine Maintenance, Aircr4920-01-149-0257

NSN 4920-01-149-0257 · NIIN 011490257 · Part number 856A1047G03
Cfm International Inc Dba Cfm International · FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 58828
Government record, cited
NSN 4920-01-149-0257 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-149-0257. Manufacturer of record part number: 856A1047G03.
Also searched as  4920-01-149-0257 · 4920011490257 · NIIN 011490257 · 01-149-0257 · FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment · CAGE 58828 · 856A1047G03 · 856A1047G01 · 856A1047G02
Nearby stock numbers  ·
Features
  • Fixture,engine Maintenance,aircr — FSC 4920
  • Nominal Overall Diameter: 16.000 INCHES IN
  • Nominal Overall Length: 16.000 INCHES IN
  • Reference Data and Literature: F34601-94-D-0976, SERD 0644
  • Nominal Overall Height: 10.000 INCHES IN
  • Functional Description: FIXTURE NEEDED TO INSTALL NO. 3 BEARING ON THE 47 TOOTH INLET GEARBOX BEVEL GEAR; TO RESTRAIN THE 47 TOOTH GEAR/NO. 3 BEARING ASSY WHILE THE N0. 3 BEARING ROTATING SEAL IS INSTALLED/REMOVED USING 856A1046; TO INSTALL THE 47TOOTH GEAR/N0. 3 BEARING ASSY IN THE INLET GEARBOX HOUSING; TO RESTRAIN THE INLET GEARBOX HOUSING WHILE THE NO. 3 BEARING RETAINER BOLT IS INSTALLED/REMMOVED USING 856A1045
  • 1 manufacturer part number on file
  • Manufacturer of record: Cfm International Inc Dba Cfm International
Identification
  • NSN: 4920-01-149-0257
  • NIIN: 011490257
  • FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
  • FSG: 49 — Maintenance and Repair Shop Equipment
  • Primary part number: 856A1047G03
  • Manufacturer: Cfm International Inc Dba Cfm International
General Description

The Fixture,engine Maintenance,aircr, cataloged under National Stock Number 4920-01-149-0257, 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 Cfm International Inc Dba Cfm International. Government technical data includes 5 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. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-149-0257
Primary Part Number856A1047G03
Item NameFixture,engine Maintenance,aircr
FSC / FSG4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment
ManufacturerCfm International Inc Dba Cfm International
StatusACTIVE
Nominal Overall Diameter16.000 INCHES IN
Nominal Overall Length16.000 INCHES IN
Reference Data and LiteratureF34601-94-D-0976, SERD 0644
Nominal Overall Height10.000 INCHES IN
Functional DescriptionFIXTURE NEEDED TO INSTALL NO. 3 BEARING ON THE 47 TOOTH INLET GEARBOX BEVEL GEAR; TO RESTRAIN THE 47 TOOTH GEAR/NO. 3 BEARING ASSY WHILE THE N0. 3 BEARING ROTATING SEAL IS INSTALLED/REMOVED USING 856A1046; TO INSTALL THE 47TOOTH GEAR/N0. 3 BEARING ASSY IN THE INLET GEARBOX HOUSING; TO RESTRAIN THE INLET GEARBOX HOUSING WHILE THE NO. 3 BEARING RETAINER BOLT IS INSTALLED/REMMOVED USING 856A1045
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL Q — CCL Item — Commerce Control List
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
856A1047G03 PRIMARY Cfm International Inc Dba Cfm International (USA)
Reference documents
ReferenceMeaning
856A1047G01 5/9 Secondary reference
Cfm International Inc Dba Cfm International
856A1047G02 5/9 Secondary reference
Cfm International Inc Dba Cfm International
No interchangeability data on file.
Other items in FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4920-00-000-0190
TEST SET,FLIGHT CONTROL SYSTEM
4920-00-001-1405
4920-00-001-1405 · Item name not on file
4920-00-001-1716
4920-00-001-1716 · Item name not on file
4920-00-001-1744
4920-00-001-1744 · Item name not on file
4920-00-001-1745
4920-00-001-1745 · Item name not on file
4920-00-001-1746
4920-00-001-1746 · Item name not on file
4920-00-001-1747
4920-00-001-1747 · Item name not on file
4920-00-001-1748
4920-00-001-1748 · Item name not on file

Frequently Asked Questions

What is NSN 4920-01-149-0257?

NSN 4920-01-149-0257 is a Fixture,engine Maintenance,aircr, manufactured by Cfm International Inc Dba Cfm International, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.

What part numbers are listed for NSN 4920-01-149-0257?

NSN 4920-01-149-0257 has 1 manufacturer part number on file: 856A1047G03 (Cfm International Inc Dba Cfm International).

What are the specifications of 856A1047G03?

Key specifications for 856A1047G03: Nominal Overall Diameter: 16.000 INCHES IN; Nominal Overall Length: 16.000 INCHES IN; Reference Data and Literature: F34601-94-D-0976, SERD 0644; Nominal Overall Height: 10.000 INCHES IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4920-01-149-0257 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

What is the DEMIL code for NSN 4920-01-149-0257?

NSN 4920-01-149-0257 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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