NSN 1240-01-498-2272 · NIIN 014982272 · Part number 7408677
Naval Sea Systems Command · FSC 1240 — Optical Sighting and Ranging Equipment · FSG 12 — Fire Control Equipment · CAGE 53711
Government record, cited
NSN 1240-01-498-2272 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-498-2272. Manufacturer of record part number: 7408677.
Also searched as1240-01-498-2272 ·
1240014982272 ·
NIIN 014982272 ·
01-498-2272 ·
FSC 1240 Optical Sighting and Ranging Equipment · CAGE 53711 · 7408677
Nearby stock numbers← 1240-01-498-2086 Range Finder, Laser
·
1240-01-498-2306 Holder, Optical Element →
Features
Ring,retaining,optical Element — FSC 1240
Internal Flange Thickness: 0.780 INCHES NOMINAL IN
FSC: 1240 — Optical Sighting and Ranging Equipment
FSG: 12 — Fire Control Equipment
Primary part number: 7408677
Manufacturer: Naval Sea Systems Command
General Description
The Ring,retaining,optical Element, cataloged under National Stock Number 1240-01-498-2272, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1240-01-498-2272
Primary Part Number
7408677
Item Name
Ring,retaining,optical Element
FSC / FSG
1240 / 12 — Optical Sighting and Ranging Equipment
Other items in FSC 1240 — Optical Sighting and Ranging Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1240-00-000-0160
SIGHT UNIT
1240-00-001-4014
1240-00-001-4014 · Item name not on file
1240-00-001-4015
1240-00-001-4015 · Item name not on file
1240-00-001-4488
FILTER,LIGHT,OPTICAL INSTRUMENT
1240-00-003-1076
1240-00-003-1076 · Item name not on file
1240-00-003-8404
1240-00-003-8404 · Item name not on file
1240-00-003-8405
1240-00-003-8405 · Item name not on file
1240-00-003-8406
MOUNT,TELESCOPE
Frequently Asked Questions
What is NSN 1240-01-498-2272?
NSN 1240-01-498-2272 is a Ring,retaining,optical Element, manufactured by Naval Sea Systems Command, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
What part numbers are listed for NSN 1240-01-498-2272?
NSN 1240-01-498-2272 has 1 manufacturer part number on file: 7408677 (Naval Sea Systems Command).
What are the specifications of 7408677?
Key specifications for 7408677: Internal Flange Thickness: 0.780 INCHES NOMINAL IN; Drive Type: SLOTTED FACE; Outside Diameter: 3.375 INCHES NOMINAL IN; Special Features: RING HAS AN ENLARGED DIOPTER SCALE RANGE -7.5 TO +3.5 AND -4 TO +2. INSIDE DIAMETER OF RING MEASURES 2.625 IN. IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 1240-01-498-2272 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.