PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

568-1Test Unit,calibrati

General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations · NSN 4920-01-074-6657 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-074-6657 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-074-6657. Primary manufacturer part number: 568-1.
Features
  • Test Unit,calibrati — FSC 4920
  • Functional Description: PROVIDES BREAKOUT CAPABILITY AND TEST STIMULUS FOR PAL/USG/MUX CALIBR.
  • Criticality Code Justification: AGAV
  • Reference Data and Literature: T.O. 33D7-45-60-4
  • 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,calibrati, cataloged under National Stock Number 4920-01-074-6657, 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 3 verified specifications, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-074-6657
Primary Part Number568-1
Item NameTest Unit,calibrati
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerGeneral Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
StatusACTIVE
Functional DescriptionPROVIDES BREAKOUT CAPABILITY AND TEST STIMULUS FOR PAL/USG/MUX CALIBR.
Criticality Code JustificationAGAV
Reference Data and LiteratureT.O. 33D7-45-60-4
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5999-00-244-5390105002 INTERCHANGEABLE
Clip,electrical
Littelfuse, Inc.
2925-00-328-2073 INTERCHANGEABLE
Shield,spark Plug
5310-00-474-351500464 INTERCHANGEABLE
Nut,sleeve
Defense Logistics Agency Dba Defense Supply Center Philadelphia
9390-00-599-2152 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
5998-01-005-89325681 INTERCHANGEABLE
Electronic Components Assembly
The Bechdon Company, Llc
1005-01-523-4611 INTERCHANGEABLE
Rifle,sniper
Cross-Reference Index
Part NumberManufacturer
568-1 PRIMARY General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations (USA)
Related Parts
5999-00-244-5390INTERCHANGEABLE
CLIP,ELECTRICAL
105002
2925-00-328-2073INTERCHANGEABLE
SHIELD,SPARK PLUG
5310-00-474-3515INTERCHANGEABLE
NUT,SLEEVE
00464
9390-00-599-2152INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
5998-01-005-8932INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5681
1005-01-523-4611INTERCHANGEABLE
RIFLE,SNIPER

Frequently Asked Questions

What is NSN 4920-01-074-6657?

NSN 4920-01-074-6657 is a Test Unit,calibrati, 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 4920-01-074-6657?

NSN 4920-01-074-6657 has 1 cross-referenced part number: 568-1 (General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations).

What NSN replaces 4920-01-074-6657?

There are 6 known substitutes for 4920-01-074-6657: 5999-00-244-5390, 2925-00-328-2073, 5310-00-474-3515 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 568-1?

Key specifications for 568-1: Functional Description: PROVIDES BREAKOUT CAPABILITY AND TEST STIMULUS FOR PAL/USG/MUX CALIBR.; Criticality Code Justification: AGAV; Reference Data and Literature: T.O. 33D7-45-60-4; End Item Identification: F-16A/B ACFT AGE. A. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com