NSN

1240-01-172-2121

Ring,Retaining,Optical Element

FSC 1240OPTICAL SIGHTING AND RANGING EQUIPMENTFSG 12FIRE CONTROL EQUIPMENT

Unit Price

$86.58

per EA

2 parts / 2 mfrs

Part Numbers for NSN 1240-01-172-21212 records
Part NumberCAGEManufacturerRNCCRNVC
82A5027A150601365Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service32
82A5027A150627777L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division59
Manufacturers (2)

Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service

CAGE 01365
View NSNs

L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division

CAGE 27777
View NSNs
Price History
Effective DateUnit PriceUISLC
01-OCT-2025$86.58EA0
01-OCT-2025$86.58EA0
01-OCT-2025$86.58EA0
Identification Data

DEMIL

D

HMIC

N

PMIC

A

ESD/EMI

Item Characteristics
MRCRequirementReply
ABHPOVERALL LENGTH7.63 MILLIMETERS MINIMUM AND 7.87 MILLIMETERS MAXIMUM
ABKVOUTSIDE DIAMETER31.63 MILLIMETERS MINIMUM AND 31.87 MILLIMETERS MAXIMUM
ABVLAPERTURE DIAMETER12.5 MILLIMETERS MINIMUM AND 12.9 MILLIMETERS MAXIMUM
ALGCMOUNTING CONFIGURATIONTWO HOLES ON 25.2 MM MINIMUM AND 25.6 MM MAXIMUM CIRCLE,3.0 MM MINIMUM AND 4.0 MM MAXIMUM DIA
BMTLINTERNAL FLANGE THICKNESS1.27 MILLIMETERS NOMINAL
MATTMATERIALALUMINUM ALLOY A413.0

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About NSN 1240-01-172-2121

NSN 1240-01-172-2121 is a National Stock Number assigned to Ring,Retaining,Optical Element. This NSN part number belongs to Federal Supply Class 1240 (OPTICAL SIGHTING AND RANGING EQUIPMENT) under Federal Supply Group 12 (FIRE CONTROL EQUIPMENT). There are 2 part numbers associated with this NSN from 2 manufacturers.

The current government unit price for NSN 1240-01-172-2121 is $86.58. Price history shows 3 recorded price changes.

To find the part number for NSN 1240-01-172-2121, refer to the part number cross-reference table above. Each part number is linked to its manufacturer through a CAGE (Commercial and Government Entity) code.