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NSN 4920-01-149-8657Government record, cited

Fixture, Engine Maintenance, Aircr4920-01-149-8657

NSN 4920-01-149-8657 · NIIN 011498657 · Part number 137107
Unison Industries Llc · FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 59501
Government record, cited
NSN 4920-01-149-8657 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-149-8657. Manufacturer of record part number: 137107.
Also searched as  4920-01-149-8657 · 4920011498657 · NIIN 011498657 · 01-149-8657 · FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment · CAGE 59501 · 137107
Nearby stock numbers  ·
Features
  • Fixture,engine Maintenance,aircr — FSC 4920
  • Nominal Overall Diameter: 4.500 INCHES IN
  • Nominal Overall Length: 3.250 INCHES IN
  • Reference Data and Literature: SERD NO. 4566
  • Functional Description: USED TO LOCATE NEW HOLES IN STATOR HOUSING FOR MOUNTING OF THE REOPERATED REACTOR ASSY ON THE STATOR GENERATOR
  • 1 manufacturer part number on file
  • Manufacturer of record: Unison Industries Llc
Identification
  • NSN: 4920-01-149-8657
  • NIIN: 011498657
  • FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
  • FSG: 49 — Maintenance and Repair Shop Equipment
  • Primary part number: 137107
  • Manufacturer: Unison Industries Llc
General Description

The Fixture,engine Maintenance,aircr, cataloged under National Stock Number 4920-01-149-8657, 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 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Technical Specifications
ParameterValue
NSN4920-01-149-8657
Primary Part Number137107
Item NameFixture,engine Maintenance,aircr
FSC / FSG4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment
ManufacturerUnison Industries Llc
StatusACTIVE
Nominal Overall Diameter4.500 INCHES IN
Nominal Overall Length3.250 INCHES IN
Reference Data and LiteratureSERD NO. 4566
Functional DescriptionUSED TO LOCATE NEW HOLES IN STATOR HOUSING FOR MOUNTING OF THE REOPERATED REACTOR ASSY ON THE STATOR GENERATOR
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
137107 PRIMARY Unison Industries Llc (USA)
Reference documents
ReferenceMeaning
137107 5/9 Secondary reference
U.S. Government activity
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 4920-01-149-8657?

NSN 4920-01-149-8657 is a Fixture,engine Maintenance,aircr, manufactured by Unison Industries Llc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.

What part numbers are listed for NSN 4920-01-149-8657?

NSN 4920-01-149-8657 has 1 manufacturer part number on file: 137107 (Unison Industries Llc).

What are the specifications of 137107?

Key specifications for 137107: Nominal Overall Diameter: 4.500 INCHES IN; Nominal Overall Length: 3.250 INCHES IN; Reference Data and Literature: SERD NO. 4566; Special Features: STEEL. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4920-01-149-8657 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.

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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