NSN 1240-00-334-3376 · NIIN 003343376 · Part number 511716PC5
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · FSC 1240 — Optical Sighting and Ranging Equipment · FSG 12 — Fire Control Equipment · CAGE 10001
Government record, cited
NSN 1240-00-334-3376 — this item is cataloged by the U.S. Government under National Stock Number 1240-00-334-3376. Manufacturer of record part number: 511716PC5.
Also searched as1240-00-334-3376 ·
1240003343376 ·
NIIN 003343376 ·
00-334-3376 ·
FSC 1240 Optical Sighting and Ranging Equipment · CAGE 10001 · 511716PC5
Internal Flange Thickness: 0.050 INCHES NOMINAL IN
Outside Diameter: 2.080 INCHES NOMINAL IN
Aperture Diameter: 1.500 INCHES NOMINAL IN
Mounting Configuration: 10 HOLES 0.120 IN. DIA EQUALLY SPACED ON 1.850 IN. CIRCLE IN
Material: COPPER ALLOY
2 manufacturer part numbers on file
Manufacturer of record: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Identification
NSN: 1240-00-334-3376
NIIN: 003343376
FSC: 1240 — Optical Sighting and Ranging Equipment
FSG: 12 — Fire Control Equipment
Primary part number: 511716PC5
Manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
General Description
The Ring,retaining,optical Element, cataloged under National Stock Number 1240-00-334-3376, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1240-00-334-3376
Primary Part Number
511716PC5
Item Name
Ring,retaining,optical Element
FSC / FSG
1240 / 12 — Optical Sighting and Ranging Equipment
Manufacturer
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Status
ACTIVE
Internal Flange Thickness
0.050 INCHES NOMINAL IN
Outside Diameter
2.080 INCHES NOMINAL IN
Aperture Diameter
1.500 INCHES NOMINAL IN
Mounting Configuration
10 HOLES 0.120 IN. DIA EQUALLY SPACED ON 1.850 IN. CIRCLE IN
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Reference documents
Reference
Meaning
511716PC5
5/9Secondary reference
Forway Industries Inc
No interchangeability data on file.
Other items in FSC 1240 — Optical Sighting and Ranging Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1240-00-764-4734
SUNSHADE
1240-00-987-5071
1240-00-987-5071 · Item name not on file
1240-01-068-6676
HOLDER,OPTICAL ELEMENT
1240-01-082-8849
SIGHT,INFINITY
1240-01-090-0609
1240-01-090-0609 · Item name not on file
1240-01-102-4266
1240-01-102-4266 · Item name not on file
1240-01-110-9897
1240-01-110-9897 · Item name not on file
1240-01-361-6090
COLLIMATOR,INFINITY AIMING REFER
Frequently Asked Questions
What is NSN 1240-00-334-3376?
NSN 1240-00-334-3376 is a Ring,retaining,optical Element, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
What part numbers are listed for NSN 1240-00-334-3376?
NSN 1240-00-334-3376 has 2 manufacturer part numbers on file: 511716PC5 (Quadriel Inc), 511716PC5 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
What are the specifications of 511716PC5?
Key specifications for 511716PC5: Internal Flange Thickness: 0.050 INCHES NOMINAL IN; Outside Diameter: 2.080 INCHES NOMINAL IN; Aperture Diameter: 1.500 INCHES NOMINAL IN; Mounting Configuration: 10 HOLES 0.120 IN. DIA EQUALLY SPACED ON 1.850 IN. CIRCLE IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 1240-00-334-3376 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.