NSN 6645-00-163-4568

Chronometer
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
--
NIIN:
001634568

Pricing & Availability

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Privacy | Terms

Definition Definition of approved item name (AIN): "CHRONOMETER"

An instrument for precisely determining time, manufactured to close tolerances to assure the time-keeping qualities of dependability and consistency of rate. These qualities are accurately ascertained by comparison with more exact devices or by astronomical methods so that the accumulated error may be taken into account when determining time. Its usual uses are to indicate time for navigational purposes, and to serve as a reference for less accurate timepieces. It is usually provided with a winding indicator dial and is usually mounted in gimbals to maintain the instrument in a level position. May consist of a spring driven or other type of movement which is capable of exacting performance without regulation throughout the normal range of room temperatures. Not designed for carrying on the person.

6645-00-163-4568 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
ABHP
Overall Length
8.250 inches
MRC:
ABKW
Overall Height
5.000 inches
MRC:
ABMK
Overall Width
7.000 inches
MRC:
ADJH
Mounting Method
Gimbal case
MRC:
ADTV
Case Material
Brass
MRC:
ADTY
Case Surface Treatment
Polished
MRC:
AETS
Inscription Color
Black
MRC:
AEWG
Dial Outside Diameter
6.000 inches
MRC:
AFJU
Carrying Case
Provided
MRC:
AHZV
Submersibility
Nonsubmersible
MRC:
AKSS
Waterproof Feature
Not included
MRC:
ALPN
Face Type
Open
MRC:
ANBJ
Graduation Unit
1.000 hour
MRC:
APMM
Dial Scale Marking Color
Black
MRC:
APSJ
Scale Quantity
1
MRC:
APSK
Scale Range
+0.0 to 12.0 hour
MRC:
APSQ
Dial Scale Marking Luminosity
Nonluminous
MRC:
AQEC
Movement Type
Continuous running
MRC:
AQEL
Escapement Type
Detent
MRC:
AQFY
Background Color
Silver
MRC:
AQFZ
Scale Name
12 hour
MRC:
AQJX
Maximum Running Time
48.0 hours
MRC:
AQJY
Winding Device Location
Top
MRC:
AQJZ
Nonmagnetic Characteristic
Included
MRC:
AQKS
Bezel Type
Integral bezel and case hinged to mounting plate
MRC:
AQPS
Major Graduation Color
Black
MRC:
AQPT
Minor Graduation Color
Black
MRC:
AQPW
Luminous Numeral
Not included
MRC:
AQPY
Separate Totalizer Dial
Not included
MRC:
AQQA
Luminous Dial
Not included
MRC:
AQQX
Hand Quantity
3
MRC:
AQQY
Hand Designation
Greenwich time hour hand and minute hand and second hand
MRC:
AQQZ
Hand Type
Sweep and sweep and sweep
MRC:
AQRA
Hand Color
Black and black and black
MRC:
AQRB
Luminous Hand
Not included
MRC:
AQRC
Jewel Quantity
21
MRC:
AQRD
Movement Size Designation
6
MRC:
AQRE
Winding Method
Stem
MRC:
AQTA
Shockproof Feature
Not provided
MRC:
AQTB
Striking Mechanism
Not included
MRC:
AQTC
Civil Date Indicator
Not included
MRC:
AQTD
Correct Time Reset Type
Stem
MRC:
AQTN
Crystal Type
Glass
MRC:
AQTR
Time Type
Mean solar
MRC:
AQTS
Mounting Case
Included

Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM

Part Number
Cage
RNCC
RNVC
DAC
RNAAC
Status
MSDS
SADC
Part Number:
ITEM0762
Cage Code:
89227
RNCC:
3
RNVC:
2
DAC:
4
RNAAC:
75
Status:
A
MSDS:
SADC:
Indicates a design/source control reference item
Inidicates part number has been superseded

Identification Item Identification Guide (IIG) and Item Name Code (INC)

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18695
FIIG:
T270-B
Concept No.:
App. Key:
BD
Cond. Code:
1
Status:
A

Material & Special Handling Hazmat, Precious Metals, Criticality, Enviroment, and ESD

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
ADPE:
CRITL:
X
Hazmat (HMIC) N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Precious Metals (PMIC) U

Precious metal content is unknown

Criticality X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

  Identification Codes

HMIC: Hazardous Material Indicator Code. Identifies a hazardous item.

PMIC: Precious Metal Indicator Code. Identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.

ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.

ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.

CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.