NSN 4920-01-389-8433 · NIIN 013898433 · Part number 157D4250
General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems · FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 05606
Government record, cited
NSN 4920-01-389-8433 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-389-8433. Manufacturer of record part number: 157D4250.
Also searched as4920-01-389-8433 ·
4920013898433 ·
NIIN 013898433 ·
01-389-8433 ·
FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment · CAGE 05606 · 157D4250
Nearby stock numbers← 4920-01-389-8341 Test Set, Ignition, Aircraft Engin
·
4920-01-389-8439 →
Features
Fixture,aircraft Maintenance — FSC 4920
Nominal Overall Width: 9.000 INCHES IN
Nominal Overall Length: 11.000 INCHES IN
Reference Data and Literature: SERD NO.8662
Nominal Overall Height: 5.000 INCHES IN
Functional Description: THE FIXTURE IS POSITIONED ON A HANDOFF UNIT AND THE INTEGRAL GO/NO-GO GAGES EXTENDED TO DETECT EXCESSIVE WEARORDAMAGE TO THE UNIT.ONCE IN POSITION PROPER TIMING BETWEEN SPROCKET TEETH AND GEAR TEETH CAN BE VERIFIED.THE NEEDFOR REPLACEMENT OF SPROCKETS,GEARS,SHAFTS OR HOUSINGS CAN BE DETECTED USING THIS FIXTURE
1 manufacturer part number on file
Manufacturer of record: General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
Identification
NSN: 4920-01-389-8433
NIIN: 013898433
FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
FSG: 49 — Maintenance and Repair Shop Equipment
Primary part number: 157D4250
Manufacturer: General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
General Description
The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-01-389-8433, 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 General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. 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.
General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
Status
ACTIVE
Nominal Overall Width
9.000 INCHES IN
Nominal Overall Length
11.000 INCHES IN
Reference Data and Literature
SERD NO.8662
Nominal Overall Height
5.000 INCHES IN
Functional Description
THE FIXTURE IS POSITIONED ON A HANDOFF UNIT AND THE INTEGRAL GO/NO-GO GAGES EXTENDED TO DETECT EXCESSIVE WEARORDAMAGE TO THE UNIT.ONCE IN POSITION PROPER TIMING BETWEEN SPROCKET TEETH AND GEAR TEETH CAN BE VERIFIED.THE NEEDFOR REPLACEMENT OF SPROCKETS,GEARS,SHAFTS OR HOUSINGS CAN BE DETECTED USING THIS FIXTURE
General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA)
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 4920-01-389-8433?
NSN 4920-01-389-8433 is a Fixture,aircraft Maintenance, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
What part numbers are listed for NSN 4920-01-389-8433?
NSN 4920-01-389-8433 has 1 manufacturer part number on file: 157D4250 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems).
What are the specifications of 157D4250?
Key specifications for 157D4250: Nominal Overall Width: 9.000 INCHES IN; Nominal Overall Length: 11.000 INCHES IN; Reference Data and Literature: SERD NO.8662; Nominal Overall Height: 5.000 INCHES IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4920-01-389-8433 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 4920-01-389-8433?
NSN 4920-01-389-8433 has DEMIL Code B. 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.