Optical Element Retainer

NSN: 1240-00-517-8640 | Model: 5178640

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 elemen (s) , and form the internal or central portions of an optical system, see cell, optical element. Excludes ring, externally threaded.

NSN Properties and Flags

NATO Stock Number

1240-00-517-8640

DEMIL

Yes - ITAR Controlled (Code B)

Shoulder Diameter

0.562 inches

Shoulder Length

0.062 inches

Overall Length

0.100 inches

Flange Diameter

0.625 inches

End Application

Used 1015003229752

Guide Design

Thread chamfer

Internal Annular Serration

Provided

Setscrew Notch

Not provided

Material

Brass, qq-b-626, comp 360

Material

Copper alloy 360

Material Specification

Qq-b-626, comp 360 federal specification single material response

Style Designator

Shouldered

Parts List for Reactor

Other components in the assembly of NSN 5950-01-015-0032

Optical Element Retainer
NSN 1240-00-517-8640

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 1240-00-517-8640 Datasheet

Supply Class (FSC):

Optical Sighting And Ranging Equipment

Cross Reference:

5178640
5178640
5178640
5178640
5178640
5178640
5178640
5178640
5178640
5178640
5178640
5178640
5178640
5178640

Cage Codes:

Us Army Ardec Rdecom (CAGE 19200)
Macko Industries (CAGE 1CN43)
Lasmer Industries Inc (CAGE 32783)
B and S Screw Machine Products Inc (CAGE 28946)
Freehold Manufacturing Assembly Co (CAGE 2S308)
Beta Engineering, Inc. (CAGE 33436)
X Corp Delta (CAGE 33950)

Schedule B & Trade:

Schedule B: 9803200000 (NAICS 990000)

Military equipments not identified by kind
SITC: 93100

Special transactions and commodities not classified according to kind
End Use: 50060

Military apparel and footwear

Identification:

HMIC

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

PMIC

A - Item does not contain precious metal.

ADPE

- Represents items with no adp components

CRITL

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

Freight Information:

NMFC:

095190 - Hardware, noi
WCC:

713 - Metal hardware
SHC:

9 - Other or no special handling required (sh)
ADC:

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
ACC:

B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
LCL:

P - 77.5
LTL:

W - Rating variable
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
Z
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
U
MGMT_CTL
Q2200x-
Repariability
This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $170.51 to $284.18..
Does NSN 1240-00-517-8640 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army, U.s. Marine Corps, Austria, Lithuania, Spain, Canada, France, Republic Of Korea, Portugal, Denmark, Norway, Greece, and Turkey
What is the NIIN of NSN 1240-00-517-8640?
005178640 or 00-517-8640
Does NSN 1240-00-517-8640 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 1240-00-517-8640?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963