PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A10-163Crystal Unit,quartz

Logimetrics Inc · NSN 5955-00-166-9746 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-00-166-9746 — this item is cataloged by the U.S. Government under National Stock Number 5955-00-166-9746. Primary manufacturer part number: A10-163.
Features
  • Crystal Unit,quartz — FSC 5955
  • Mode of Oscillation: FUNDAMENTAL
  • Specified Frequency: 1.000 MEGAHERTZ
  • Center to Center Distance Between Terminals: 0.442 INCHES NOMINAL IN
  • Style Designator: OVAL BODY, WIRE LEADS
  • Equivalent Resistance Value in Ohms: 800.0 NOMINAL
  • Circuit Resonance: SERIES RESONANCE
  • Frequency Tolerance for Operating Temp in Percent: -0.001 TO 0.001
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-166-9746, 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 Logimetrics Inc. Government technical data includes 11 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5955-00-166-9746
Primary Part NumberA10-163
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerLogimetrics Inc
StatusCANCELLED
Mode of OscillationFUNDAMENTAL
Specified Frequency1.000 MEGAHERTZ
Center to Center Distance Between Terminals0.442 INCHES NOMINAL IN
Style DesignatorOVAL BODY, WIRE LEADS
Equivalent Resistance Value in Ohms800.0 NOMINAL
Circuit ResonanceSERIES RESONANCE
Frequency Tolerance for Operating Temp in Percent-0.001 TO 0.001
Terminal Length1.500 INCHES MAXIMUM IN
Body Width0.725 INCHES MAXIMUM IN
Overall Thickness0.352 INCHES MAXIMUM IN
Body Thickness0.317 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-010-0145100145 INTERCHANGEABLE
Screw,cap,hexagon Head
Cummins Inc.
5330-00-040-9785100-145 INTERCHANGEABLE
Packing
Sheffer Corp
5935-00-224-088178S8 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Amphenol Corp Div Amphenol Aerospace Operations
5935-00-523-9592PL40-5 INTERCHANGEABLE
Connector,plug,electrical
Trompeter Electronics, Inc.
1005-00-550-40765504076 INTERCHANGEABLE
Block
Army, United States Department of the Dba Rock Island Arsenal Jmtc
6685-00-874-0752A10163 INTERCHANGEABLE
Gage,pressure,dial Indicating
Stewart Avionics Inc
5945-00-878-5749SM-A-615402 INTERCHANGEABLE
Relay,reed
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5998-01-161-62995428596 INTERCHANGEABLE
Circuit Card Assembly
Naval Sea Systems Command
6750-01-427-0474 INTERCHANGEABLE
Film,photographic
4810-01-440-387310014-5 INTERCHANGEABLE
Valve,butterfly
Morpac Industries, Inc Div Actuator
Cross-Reference Index
Part NumberManufacturer
A10-163 PRIMARY Logimetrics Inc (USA)
100145 Logimetrics Inc (USA)
A10-163 Kontron Europe Gmbh (DEU)
Related Parts
5305-00-010-0145INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
100145
5330-00-040-9785INTERCHANGEABLE
PACKING
100-145
5935-00-224-0881INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
78S8
5935-00-523-9592INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
PL40-5
1005-00-550-4076INTERCHANGEABLE
BLOCK
5504076
6685-00-874-0752INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
A10163
5945-00-878-5749INTERCHANGEABLE
RELAY,REED
SM-A-615402
5998-01-161-6299INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5428596
6750-01-427-0474INTERCHANGEABLE
FILM,PHOTOGRAPHIC
4810-01-440-3873INTERCHANGEABLE
VALVE,BUTTERFLY
10014-5
5330-01-461-1305INTERCHANGEABLE
GASKET
100145
4320-01-708-8456INTERCHANGEABLE
CONNECTOR,FLUID,PUMP
100145

Frequently Asked Questions

What is NSN 5955-00-166-9746?

NSN 5955-00-166-9746 is a Crystal Unit,quartz, manufactured by Logimetrics Inc, classified under FSC 5955 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5955-00-166-9746?

NSN 5955-00-166-9746 has 3 cross-referenced part numbers: A10-163 (Logimetrics Inc), 100145 (Logimetrics Inc), A10-163 (Kontron Europe Gmbh).

What NSN replaces 5955-00-166-9746?

There are 12 known substitutes for 5955-00-166-9746: 5305-00-010-0145, 5330-00-040-9785, 5935-00-224-0881 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A10-163?

Key specifications for A10-163: Mode of Oscillation: FUNDAMENTAL; Specified Frequency: 1.000 MEGAHERTZ; Center to Center Distance Between Terminals: 0.442 INCHES NOMINAL IN; Style Designator: OVAL BODY, WIRE LEADS. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5955-00-166-9746 still in active supply?

NSN 5955-00-166-9746 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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