PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7539Crystal Unit,quartz

Monitor Products Co. Inc. Dba Monitor Products Co. Inc. · NSN 5955-00-976-5442 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-00-976-5442 — this item is cataloged by the U.S. Government under National Stock Number 5955-00-976-5442. Primary manufacturer part number: 7539.
Features
  • Crystal Unit,quartz — FSC 5955
  • Terminal Diameter: 0.028 INCHES NOMINAL IN
  • Terminal Length: 1.531 INCHES NOMINAL IN
  • Specified Frequency: 10.000 MEGAHERTZ
  • Frequency Tolerance for Operating Temp in Percent: -0.010 TO 0.010
  • Style Designator: BRACKET TYPE, WIRE LEADS
  • Operating Temp Range: -55.0 TO 90.0 CELSIUS DEGC
  • Body Length: 0.765 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 5955-00-976-5442, 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 Monitor Products Co. Inc. Dba Monitor Products Co. Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-00-976-5442
Primary Part Number7539
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerMonitor Products Co. Inc. Dba Monitor Products Co. Inc.
StatusACTIVE
Terminal Diameter0.028 INCHES NOMINAL IN
Terminal Length1.531 INCHES NOMINAL IN
Specified Frequency10.000 MEGAHERTZ
Frequency Tolerance for Operating Temp in Percent-0.010 TO 0.010
Style DesignatorBRACKET TYPE, WIRE LEADS
Operating Temp Range-55.0 TO 90.0 CELSIUS DEGC
Body Length0.765 INCHES NOMINAL IN
Overall Thickness0.341 INCHES NOMINAL IN
Circuit ResonanceANTIRESONANCE
Center to Center Distance Between Terminals0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5340-00-127-4345 INTERCHANGEABLE
Shield,expansion
5310-00-274-77507539 INTERCHANGEABLE
Nut,plain,hexagon
Te Connectivity Corporation
5935-00-518-9004604713-000 INTERCHANGEABLE
Connector,receptacle,electrical
Stromberg-Carlson Corp a Plessey Telecommunications Co
6130-00-753-2013C36M2TN1 INTERCHANGEABLE
Rectifier,metallic
Fmc Technologies Inc Div Material Handling Solutions
5905-00-789-7533539 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Iet Labs Inc
4730-00-826-8382 INTERCHANGEABLE
Bushing,pipe
6145-01-075-39236115 INTERCHANGEABLE
Wire,electrical
Belden, Inc.
1630-01-171-156475-39 INTERCHANGEABLE
Torque Plate Assy
Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems
6515-01-514-75357539 INTERCHANGEABLE
Goniometer,orthopedic
Performance Health Supply, Llc Dba Sammons Preston Rolyan
Cross-Reference Index
Part NumberManufacturer
C003782 Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (USA)
7539 PRIMARY Monitor Products Co. Inc. Dba Monitor Products Co. Inc. (USA)
MSC1133 Monitor Products Co. Inc. Dba Monitor Products Co. Inc. (USA)
Related Parts
5340-00-127-4345INTERCHANGEABLE
SHIELD,EXPANSION
5310-00-274-7750INTERCHANGEABLE
NUT,PLAIN,HEXAGON
7539
5935-00-518-9004INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
604713-000
6130-00-753-2013INTERCHANGEABLE
RECTIFIER,METALLIC
C36M2TN1
5905-00-789-7533INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
539
4730-00-826-8382INTERCHANGEABLE
BUSHING,PIPE
6145-01-075-3923INTERCHANGEABLE
WIRE,ELECTRICAL
6115
1630-01-171-1564INTERCHANGEABLE
TORQUE PLATE ASSY
75-39
6515-01-514-7535INTERCHANGEABLE
GONIOMETER,ORTHOPEDIC
7539

Frequently Asked Questions

What is NSN 5955-00-976-5442?

NSN 5955-00-976-5442 is a Crystal Unit,quartz, manufactured by Monitor Products Co. Inc. Dba Monitor Products Co. Inc., classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-00-976-5442?

NSN 5955-00-976-5442 has 3 cross-referenced part numbers: C003782 (Moog Inc Div Moog Inc., Space and Defense - Salt Lake City), 7539 (Monitor Products Co. Inc. Dba Monitor Products Co. Inc.), MSC1133 (Monitor Products Co. Inc. Dba Monitor Products Co. Inc.).

What NSN replaces 5955-00-976-5442?

There are 9 known substitutes for 5955-00-976-5442: 5340-00-127-4345, 5310-00-274-7750, 5935-00-518-9004 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7539?

Key specifications for 7539: Terminal Diameter: 0.028 INCHES NOMINAL IN; Terminal Length: 1.531 INCHES NOMINAL IN; Specified Frequency: 10.000 MEGAHERTZ; Frequency Tolerance for Operating Temp in Percent: -0.010 TO 0.010. 12 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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