5855-01-456-2340

Night Vision Optical Instrument Focusing Ring email this page

Model or part number: 206255-001

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pdf NSN 5855-01-456-2340 Datasheet

MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3a
MRC:
The minimum and maximum pitch diameter limits of a straight screw thread.AAJE
Thread Pitch Diameters:
+0.0819 to 0.0860 inches
MRC:
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.AAJF
Thread Direction:
Right-hand
MRC:
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.ABET
Thread Length:
0.180 inches
MRC:
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.ABKV
Outside Diameter:
0.888 inches
MRC:
Designates the thread diameter and number of threads per specific measurement scale.ABUJ
Thread Size:
55/64-56
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
All coast guard aircraft
MRC:
A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.AJYP
Screw Thread Series Designator:
Unf
MRC:
The pattern or arrangement that describes the mounting configuration of the item.ALGC
Mounting Configuration:
Four hollow screws (mrc) abuj size 1.205 in. Apart screwed into housing
MRC:
Indicates the location of the thread on the item.APJC
Thread Location:
External
MRC:
A measurement of the smallest dimension of an internal flange,in distinction from length or width.BMTL
Internal Flange Thickness:
1.240 inches
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Aluminum
MRC:
--
NIIN:
014562340
MRC:
--
NATO Stock Number:
5855-01-456-2340
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
FIIG:
--
FIIG:
T271-J
MRC:
--
INC:
45552
MRC:
--
IMM:
TX
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Factory New, New Material, New Surplus, Overhauled, Serviceable, Repairable, and AS Removed / Used material will be accompanied by a Certificate of Conformance, and any other documents/trace when applicable. We have a 7 year record retention.

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Quality | ISO 9001:2015 + AS9120B

We are committed to quality and follow an AS9120 quality management system. AeroBase Group is HAZMAT certified and registered with DDTC, ITAR, and Aviation Suppliers Association (ASA). All products are 100% inspected.

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Shipping

Delivery of IN-STOCK orders ship same-day when order is placed before 2:00 PM EST.

Delivery dates for NON-STOCK items are estimates based on current backlog and are subject to confirmation at the time of order.

Formal Definition

Government issue definition of NSN 5855-01-456-2340

A cylindrical item specially designed to manually adjust the focus on an optical instrument. It may have an internal thread mounting method or machined for a press-fit. It usually has a knurled periphery.

Import / Export

Schedule B Classification
Schedule B Number
NAIC National Association of Insurance Commissioners
End Use A classification system for U.S. exported and imported merchandise based on principal use rather than the physical characteristics of the merchandise. End-Use codes are assigned by the Bureau of Economic Analysis under the U.S. Department of Commerce.
SITC Commodity classification system defined by the United Nations.
USDA
HITECH
Schedule B:
9014900000
NAICS:
334511
End Use Class:
22220
SITC:
87412
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 9014900000

Parts & Accessories For Direction Finding Compasses and Other Navigational Instruments and Appliances

End Use Code 22220

Marine Engines, Parts

Standard Intl. Trade Class (SITC) 87412

Parts and Accessories Of Navigational Instruments and Appliances

Manufacturers

This NSN is registered to the following cage codes.
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