PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2891660-1Crystal Unit,quartz

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5955-01-029-7044 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-029-7044 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-029-7044. Primary manufacturer part number: 2891660-1.
Features
  • Crystal Unit,quartz — FSC 5955
  • Circuit Resonance: SERIES RESONANCE
  • Mode of Oscillation: FUNDAMENTAL
  • Equivalent Resistance Value in Ohms: 50.0 MAXIMUM
  • Center to Center Distance Between Terminals: 0.184 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
  • Style Designator: BRACKET TYPE, WIRE LEADS
  • Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005
  • Drive Level Rating: 4.0 MILLIWATTS MINIMUM AND 6.0 MILLIWATTS MAXIMUM
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-029-7044, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 16 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-01-029-7044
Primary Part Number2891660-1
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Circuit ResonanceSERIES RESONANCE
Mode of OscillationFUNDAMENTAL
Equivalent Resistance Value in Ohms50.0 MAXIMUM
Center to Center Distance Between Terminals0.184 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Style DesignatorBRACKET TYPE, WIRE LEADS
Frequency Tolerance for Operating Temp in Percent-0.005 TO 0.005
Drive Level Rating4.0 MILLIWATTS MINIMUM AND 6.0 MILLIWATTS MAXIMUM
Body Length0.530 INCHES MAXIMUM IN
Specified Frequency4.000 MEGAHERTZ
Body Thickness0.150 INCHES MAXIMUM IN
Shunt Capacitance in Picofarads7.0 MAXIMUM
Terminal Length1.000 INCHES MINIMUM IN
Operating Temp Range-55.0 TO 105.0 CELSIUS DEGC
Overall Thickness0.183 INCHES MAXIMUM IN
Body Width0.402 INCHES MAXIMUM IN
Terminal Diameter0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3010-00-174-5633B321 INTERCHANGEABLE
Coupling,shaft,flexible
Charles Bond Company Dba Christiana Machine Company
3455-00-194-055058-10071 INTERCHANGEABLE
Cutter,milling,side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5342-00-200-3757K7107441REV2PT1 INTERCHANGEABLE
Mount,resilient,weapon System
General Electric Company
5365-00-829-0965B3-21 INTERCHANGEABLE
Spacer,ring
Roller Bearing Co of America, Inc Div Pic Design
4140-00-829-87650691-7 INTERCHANGEABLE
Fan,centrifugal
Lockheed Martin Corporation Div Rms - Mitchel Field
6850-01-051-0581B321 INTERCHANGEABLE
Cleaning Compound,optical Lens
U S Dept of Transportation Federal Aviation Administration
Cross-Reference Index
Part NumberManufacturer
2891660-1 Raytheon Company Div Corp (USA)
B-32-1 Bliley Technologies Inc (USA)
2891660-1 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
3010-00-174-5633INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
B321
3455-00-194-0550INTERCHANGEABLE
CUTTER,MILLING,SIDE
58-10071
5342-00-200-3757INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
K7107441REV2PT1
5365-00-829-0965INTERCHANGEABLE
SPACER,RING
B3-21
4140-00-829-8765INTERCHANGEABLE
FAN,CENTRIFUGAL
0691-7
6850-01-051-0581INTERCHANGEABLE
CLEANING COMPOUND,OPTICAL LENS
B321

Frequently Asked Questions

What is NSN 5955-01-029-7044?

NSN 5955-01-029-7044 is a Crystal Unit,quartz, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-01-029-7044?

NSN 5955-01-029-7044 has 3 cross-referenced part numbers: 2891660-1 (Raytheon Company Div Corp), B-32-1 (Bliley Technologies Inc), 2891660-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5955-01-029-7044?

There are 6 known substitutes for 5955-01-029-7044: 3010-00-174-5633, 3455-00-194-0550, 5342-00-200-3757 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2891660-1?

Key specifications for 2891660-1: Circuit Resonance: SERIES RESONANCE; Mode of Oscillation: FUNDAMENTAL; Equivalent Resistance Value in Ohms: 50.0 MAXIMUM; Center to Center Distance Between Terminals: 0.184 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN. 17 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