PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

624-1Test Unit

General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations · NSN 4920-01-119-5290 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-119-5290 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-119-5290. Primary manufacturer part number: 624-1.
Features
  • Test Unit — FSC 4920
  • General Characteristics Item Description: PREFORMS CALIBRATION,MAINTENANCE AND FAULT ISOLATION TEST OF THE AVIONICS MULTIPLEX BUS CIRCUITS IN THE FOLLOWING MODES RECEIVE ONLY,TRANSMIT-RECEIVE MODE ONE,TWO AND THREE; TRANSMISSION RATE 2.000 TO 6.000 MICROSECONDS; SELF CONTAINED CABLE; 20.000 BIT WORD US
  • 1 verified cross-reference
  • Primary manufacturer: General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Test Unit, cataloged under National Stock Number 4920-01-119-5290, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-119-5290
Primary Part Number624-1
Item NameTest Unit
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerGeneral Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
StatusACTIVE
General Characteristics Item DescriptionPREFORMS CALIBRATION,MAINTENANCE AND FAULT ISOLATION TEST OF THE AVIONICS MULTIPLEX BUS CIRCUITS IN THE FOLLOWING MODES RECEIVE ONLY,TRANSMIT-RECEIVE MODE ONE,TWO AND THREE; TRANSMISSION RATE 2.000 TO 6.000 MICROSECONDS; SELF CONTAINED CABLE; 20.000 BIT WORD US
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1650-00-135-4845 INTERCHANGEABLE
Piston Assy,motor
5365-00-177-2874624 INTERCHANGEABLE
Ring,seal
Carver Pump Company
5210-00-221-1932440Z-6L INTERCHANGEABLE
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L.s. Starrett Company (the) Div Tool Division
5930-00-245-699922480-23 INTERCHANGEABLE
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Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5999-00-296-9887 INTERCHANGEABLE
Contact,electrical
3540-00-565-62413540-00-565-6241 INTERCHANGEABLE
Strapping and Sealing Kit
Independent Metal Strap Co Inc
5940-00-755-43116241 INTERCHANGEABLE
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Eby Group, Llc, the Dba Eby Company Div Eby Company
3110-00-759-92586241 INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Hitech Division
5340-00-846-72076241 INTERCHANGEABLE
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4920-01-065-65786-2-4-1 INTERCHANGEABLE
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Cross-Reference Index
Part NumberManufacturer
624-1 PRIMARY General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations (USA)
Related Parts
1650-00-135-4845INTERCHANGEABLE
PISTON ASSY,MOTOR
5365-00-177-2874INTERCHANGEABLE
RING,SEAL
624
5210-00-221-1932INTERCHANGEABLE
GAGE,DEPTH,MICROMETER
440Z-6L
5930-00-245-6999INTERCHANGEABLE
SWITCH,ROTARY
22480-23
5999-00-296-9887INTERCHANGEABLE
CONTACT,ELECTRICAL
3540-00-565-6241INTERCHANGEABLE
STRAPPING AND SEALING KIT
3540-00-565-6241
5940-00-755-4311INTERCHANGEABLE
POST,BINDING,ELECTRICAL
6241
3110-00-759-9258INTERCHANGEABLE
BEARING,BALL,ANNULAR
6241
5340-00-846-7207INTERCHANGEABLE
CAP,FILLER OPENING
6241
4920-01-065-6578INTERCHANGEABLE
BOTTLE ASSEMBLY
6-2-4-1
6685-01-334-3205INTERCHANGEABLE
PLUG,SET
6241
5365-01-554-8149INTERCHANGEABLE
SPACER,SLEEVE
6241

Frequently Asked Questions

What is NSN 4920-01-119-5290?

NSN 4920-01-119-5290 is a Test Unit, manufactured by General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-119-5290?

NSN 4920-01-119-5290 has 1 cross-referenced part number: 624-1 (General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations).

What NSN replaces 4920-01-119-5290?

There are 12 known substitutes for 4920-01-119-5290: 1650-00-135-4845, 5365-00-177-2874, 5210-00-221-1932 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 624-1?

Key specifications for 624-1: General Characteristics Item Description: PREFORMS CALIBRATION,MAINTENANCE AND FAULT ISOLATION TEST OF THE AVIONICS MULTIPLEX BUS CIRCUITS IN THE FOLLOWING MODES RECEIVE ONLY,TRANSMIT-RECEIVE MODE ONE,TWO AND THREE; TRANSMISSION RATE 2.000 TO 6.000 MICROSECONDS; SELF CONTAINED CABLE; 20.000 BIT WORD US; End Item Identification: F-16. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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