PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

972125-1Crystal Unit,quartz

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 5955-01-030-7780 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-030-7780 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-030-7780. Primary manufacturer part number: 972125-1.
Features
  • Crystal Unit,quartz — FSC 5955
  • Terminal Length: 0.280 INCHES NOMINAL IN
  • Center to Center Distance Between Terminals: 0.375 INCHES NOMINAL IN
  • Style Designator: HAT TYPE, 4 WIRE LEADS
  • Specified Frequency: 921.600 KILOHERTZ
  • Diameter: 0.725 INCHES MAXIMUM IN
  • Overall Diameter: 0.840 INCHES MAXIMUM IN
  • Terminal Diameter: 0.040 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-030-7780, is classified within Federal Supply Class 5955 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-01-030-7780
Primary Part Number972125-1
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Terminal Length0.280 INCHES NOMINAL IN
Center to Center Distance Between Terminals0.375 INCHES NOMINAL IN
Style DesignatorHAT TYPE, 4 WIRE LEADS
Specified Frequency921.600 KILOHERTZ
Diameter0.725 INCHES MAXIMUM IN
Overall Diameter0.840 INCHES MAXIMUM IN
Terminal Diameter0.040 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5340-00-352-0994 INTERCHANGEABLE
Spring
Cross-Reference Index
Part NumberManufacturer
RHCA921.6-1 Cts Reeves Frequency Products (USA)
K210-1 Bliley Technologies Inc (USA)
972125-1 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5340-00-352-0994INTERCHANGEABLE
SPRING

Frequently Asked Questions

What is NSN 5955-01-030-7780?

NSN 5955-01-030-7780 is a Crystal Unit,quartz, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-01-030-7780?

NSN 5955-01-030-7780 has 3 cross-referenced part numbers: RHCA921.6-1 (Cts Reeves Frequency Products), K210-1 (Bliley Technologies Inc), 972125-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5955-01-030-7780?

There is 1 known substitute for 5955-01-030-7780: 5340-00-352-0994. Verify interchangeability with system specifications before substitution.

What are the specifications of 972125-1?

Key specifications for 972125-1: Overall Length: 0.460 INCHES MAXIMUM IN; Terminal Length: 0.280 INCHES NOMINAL IN; Center to Center Distance Between Terminals: 0.375 INCHES NOMINAL IN; Special Features: TABL LOCATION OPTIONAL. 9 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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