Product Details | OPTICAL ELEMENT RETAINER

5855-01-180-2172 A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see CELL, OPTICAL ELEMENT. Excludes RING, EXTERNALLY THREADED.20312400038Optical Sighting and Ranging Equipment58550055Night Vision Equipment, Emitted and Reflected Radiation66500063Optical Instruments, Test Equipment, Components and Accessories

Part Alternates: 13075884, 5855-01-180-2172, 01-180-2172, 5855011802172, 011802172

Communication, Detection, and Coherent Radiation Equipment | Night Vision Equipment, Emitted and Reflected Radiation

Supply Group (FSG) NSN Assign. NIIN
58 25 MAY 1984 01-180-2172

Drawings & Photos | NSN 5855-01-180-2172


Demand History | NSN 5855-01-180-2172

Part Number Request Date QTY Origin
5855-01-180-2172 2024-09-262 1 US
13075884 2023-03-71 25 DIBBS
5855-01-180-2172 2018-05-151 25 DIBBS
5855-01-180-2172 2007-07-191 24 DIBBS

Cross Reference | NSN 5855-01-180-2172

Part Number Cage Code Manufacturer
13075884 04939 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
13075884 58260 PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH
13075884 9Y204 NORMAN ENGINEERING CORPORATION

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Technical Data | NSN 5855-01-180-2172

Characteristic Specifications
STYLE DESIGNATOR F4 SHOULDERED
SHOULDER LENGTH 0.170 INCHES NOMINAL
HOLE DIAMETER 2.188 INCHES NOMINAL
OVERALL LENGTH 0.420 INCHES NOMINAL
FLANGE DIAMETER 2.500 INCHES NOMINAL
SHOULDER THREAD SIZE 2.3125 IN.-40
MATERIAL ALUMINUM ALLOY, QQ-A-225/8, ALLOY 6061, T6
SURFACE TREATMENT ANODIZED
DRIVE TYPE SLOTTED
HOLE OR SLOT QUANTITY 4
DIAMETER 2.500 INCHES NOMINAL
WIDTH 0.060 INCHES NOMINAL
DEPTH 0.040 INCHES NOMINAL
DRIVE FACILITY ANGULAR SPACING IN DEG 90.0
INTERNAL ANNULAR SERRATION NOT PROVIDED
GUIDE DESIGN THREAD RELIEF
GUIDE LOCATION EDGE OPPOSITE DRIVE EDGE
SETSCREW NOTCH NOT PROVIDED
MANUFACTURERS CODE 04939
DESIGN CONTROL REFERENCE 13075884

Restrictions/Controls & Freight Information | NSN 5855-01-180-2172

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 058110 OPTICAL GOODS OR INSTRUMENTS NOI
Less than car load rating D 200
Less than truck load rating D 200.0
Water commodity Code 744 unknown
Originating Activity Code BD U.S. Army Aviation and Missile Command
Redstone Arsenal, AL 35898-5230
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5855-01-180-2172

Category Code Description
Materiel Category and Inventory ManagerQ Electronics Materiel (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each