PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12765Crystal Unit,quartz

Eaton Corp Electronic Instrumentation Div Los Angeles Plant · NSN 5955-01-057-3257 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-01-057-3257 — this item is cataloged by the U.S. Government under National Stock Number 5955-01-057-3257. Primary manufacturer part number: 12765.
Features
  • Crystal Unit,quartz — FSC 5955
  • Specified Frequency: 2.055 MEGAHERTZ
  • Style Designator: OVAL BODY, WIRE LEADS
  • 2 verified cross-references
  • Primary manufacturer: Eaton Corp Electronic Instrumentation Div Los Angeles Plant
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-057-3257, 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 Eaton Corp Electronic Instrumentation Div Los Angeles Plant. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-01-057-3257
Primary Part Number12765
Item NameCrystal Unit,quartz
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerEaton Corp Electronic Instrumentation Div Los Angeles Plant
StatusACTIVE
Specified Frequency2.055 MEGAHERTZ
Style DesignatorOVAL BODY, WIRE LEADS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-00-073-04304F65021 INTERCHANGEABLE
Seal,oil
Funk Mfg Co Sub of Deere and Co
5940-00-082-5094 INTERCHANGEABLE
Terminal,stud
5305-00-147-651212765 INTERCHANGEABLE
Screw,machine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
4720-00-212-89301276-5 INTERCHANGEABLE
Hose,nonmetallic
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
1680-00-627-884712765 INTERCHANGEABLE
Body,hyd Power Pack
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
3120-00-934-0249 INTERCHANGEABLE
Bearing,sleeve
5905-01-163-883912765 INTERCHANGEABLE
Resistor Variable
Kurz & Root Generator Company, Llc
5995-01-663-975112765 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Gatr Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
12765 Eaton Corp Electronic Instrumentation Div Los Angeles Plant (USA)
12765 Crystek Crystals Corporation Dba Crystek Corp (USA)
Related Parts
5330-00-073-0430INTERCHANGEABLE
SEAL,OIL
4F65021
5940-00-082-5094INTERCHANGEABLE
TERMINAL,STUD
5305-00-147-6512INTERCHANGEABLE
SCREW,MACHINE
12765
4720-00-212-8930INTERCHANGEABLE
HOSE,NONMETALLIC
1276-5
1680-00-627-8847INTERCHANGEABLE
BODY,HYD POWER PACK
12765
3120-00-934-0249INTERCHANGEABLE
BEARING,SLEEVE
5905-01-163-8839INTERCHANGEABLE
RESISTOR VARIABLE
12765
5995-01-663-9751INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12765

Frequently Asked Questions

What is NSN 5955-01-057-3257?

NSN 5955-01-057-3257 is a Crystal Unit,quartz, manufactured by Eaton Corp Electronic Instrumentation Div Los Angeles Plant, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-01-057-3257?

NSN 5955-01-057-3257 has 2 cross-referenced part numbers: 12765 (Eaton Corp Electronic Instrumentation Div Los Angeles Plant), 12765 (Crystek Crystals Corporation Dba Crystek Corp).

What NSN replaces 5955-01-057-3257?

There are 8 known substitutes for 5955-01-057-3257: 5330-00-073-0430, 5940-00-082-5094, 5305-00-147-6512 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12765?

Key specifications for 12765: Specified Frequency: 2.055 MEGAHERTZ; Style Designator: OVAL BODY, WIRE LEADS. 2 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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