NSN 4920-01-314-7077 · NIIN 013147077 · Part number 570-3983-05
Acron Aviation, Inc. · FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 25583
Government record, cited
NSN 4920-01-314-7077 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-314-7077. Manufacturer of record part number: 570-3983-05.
Also searched as4920-01-314-7077 ·
4920013147077 ·
NIIN 013147077 ·
01-314-7077 ·
FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment · CAGE 25583 · 570-3983-05
Functional Description: USED TO HOLD THE ROTOR HOUSING ASSSEMBLY AND PROVIDE THE PROPER WEIGHT ON ROTOR BEARINGS WHILE CEMENT SECURING BEARING IS CURED IN AN OVEN,THUS SETTING THE BEARING PRELOAD. PROPER ROTOR BEARING PRELOAD IS NECESSARY TO OBTAIN RELIABLE GYRO MOTOR OPERATION; USED ON THE B1-B ACFT
1 manufacturer part number on file
Manufacturer of record: Acron Aviation, Inc.
Identification
NSN: 4920-01-314-7077
NIIN: 013147077
FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
FSG: 49 — Maintenance and Repair Shop Equipment
Primary part number: 570-3983-05
Manufacturer: Acron Aviation, Inc.
General Description
The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-01-314-7077, 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 Acron Aviation, Inc.. 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. Current acquisition status: Active.
USED TO HOLD THE ROTOR HOUSING ASSSEMBLY AND PROVIDE THE PROPER WEIGHT ON ROTOR BEARINGS WHILE CEMENT SECURING BEARING IS CURED IN AN OVEN,THUS SETTING THE BEARING PRELOAD. PROPER ROTOR BEARING PRELOAD IS NECESSARY TO OBTAIN RELIABLE GYRO MOTOR OPERATION; USED ON THE B1-B ACFT
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.
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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 4920-01-314-7077?
NSN 4920-01-314-7077 is a Fixture,aircraft Maintenance, manufactured by Acron Aviation, Inc., classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
What part numbers are listed for NSN 4920-01-314-7077?
NSN 4920-01-314-7077 has 1 manufacturer part number on file: 570-3983-05 (Acron Aviation, Inc.).
What are the specifications of 570-3983-05?
Key specifications for 570-3983-05: Nominal Overall Width: 3.500 INCHES IN; Nominal Overall Length: 4.000 INCHES IN; Reference Data and Literature: SERD 51D20C; Nominal Overall Height: 10.125 INCHES IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4920-01-314-7077 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.