Frequency Tolerance for Operating Temp in Percent: -0.020 TO 0.020
Terminal Diameter: 0.091 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
Terminal Length: 0.468 INCHES NOMINAL IN
Mode of Oscillation: FUNDAMENTAL
Overall Thickness: 0.407 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN
Style Designator: RECTANGULAR BODY, PIN TERMINALS
Body Length: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
Identification
NSN: 5955-00-128-8312
NIIN: 001288312
FSC: 5955 — Oscillators and Piezoelectric Crystals
FSG: 59 — Electrical and Electronic Equipment Components
General Description
The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-128-8312, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5955-00-128-8312
Item Name
Crystal Unit,quartz
FSC / FSG
5955 / 59 — Oscillators and Piezoelectric Crystals
Status
ACTIVE
Frequency Tolerance for Operating Temp in Percent
-0.020 TO 0.020
Terminal Diameter
0.091 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
Terminal Length
0.468 INCHES NOMINAL IN
Mode of Oscillation
FUNDAMENTAL
Overall Thickness
0.407 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN
Style Designator
RECTANGULAR BODY, PIN TERMINALS
Body Length
1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
Center to Center Distance Between Terminals
0.486 INCHES NOMINAL IN
Operating Temp Range
-40.0 TO 70.0 CELSIUS DEGC
Specified Frequency
7.973333 MEGAHERTZ
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL Q — CCL Item — Commerce Control List
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5955-00-128-8476POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
5955-00-128-9151POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
5955-00-129-5674POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
5955-00-129-5676POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
5955-00-129-5678POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
5955-00-129-5680POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
5955-00-129-5793POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
5955-00-129-5872POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
5955-00-129-8243POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
5955-00-129-8273POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
MILC10405
4/1Identification reference
U.S. Government activity
CR6U7973-333MHZ
2/2Government specification standardization
U.S. Government activity
Related Parts
5955-00-128-8476POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-128-9151POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-129-5674POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-129-5676POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-129-5678POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-129-5680POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-129-5793POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-129-5872POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-129-8243POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-129-8273POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
5955-00-160-5990POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Frequently Asked Questions
What is NSN 5955-00-128-8312?
NSN 5955-00-128-8312 is a Crystal Unit,quartz, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
What NSN replaces 5955-00-128-8312?
11 possible matches (shared part number, not a government interchangeability claim): 5955-00-128-8476, 5955-00-128-9151, 5955-00-129-5674. Verify interchangeability with system specifications before substitution.
What are the specifications of 5955-00-128-8312?
Key specifications for 5955-00-128-8312: Frequency Tolerance for Operating Temp in Percent: -0.020 TO 0.020; Terminal Diameter: 0.091 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN; Terminal Length: 0.468 INCHES NOMINAL IN; Mode of Oscillation: FUNDAMENTAL. 10 specifications are documented in the U.S. Government catalog.
Is NSN 5955-00-128-8312 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 5955-00-128-8312?
NSN 5955-00-128-8312 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.