NSN 1240-01-558-3565 · NIIN 015583565 · Part number 8211148
L3 Technologies, Inc. Div L3 Keo · FSC 1240 — Optical Sighting and Ranging Equipment · FSG 12 — Fire Control Equipment · CAGE 34228
Government record, cited
NSN 1240-01-558-3565 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-558-3565. Manufacturer of record part number: 8211148.
Also searched as1240-01-558-3565 ·
1240015583565 ·
NIIN 015583565 ·
01-558-3565 ·
FSC 1240 Optical Sighting and Ranging Equipment · CAGE 34228 · 8211148
Manufacturer of record: L3 Technologies, Inc. Div L3 Keo
Identification
NSN: 1240-01-558-3565
NIIN: 015583565
FSC: 1240 — Optical Sighting and Ranging Equipment
FSG: 12 — Fire Control Equipment
Primary part number: 8211148
Manufacturer: L3 Technologies, Inc. Div L3 Keo
General Description
The Periscope Subassembly, cataloged under National Stock Number 1240-01-558-3565, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1240-01-558-3565
Primary Part Number
8211148
Item Name
Periscope Subassembly
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.
1240-00-764-4734
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 1240-01-558-3565?
NSN 1240-01-558-3565 is a Periscope Subassembly, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
What part numbers are listed for NSN 1240-01-558-3565?
NSN 1240-01-558-3565 has 2 manufacturer part numbers on file: 8211148 (L3 Technologies, Inc. Div L3 Keo), 8211148 (Naval Sea Systems Command).
What are the specifications of 8211148?
Key specifications for 8211148: Part Name Assigned by Controlling Agency: (INAVY)IR MODULE ASSEMBLY; End Item Identification: 8211525 (53711) ISIS, TYPE 8KMOD4 PERIS ASSY UNIT 1. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1240-01-558-3565 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.
What is the DEMIL code for NSN 1240-01-558-3565?
NSN 1240-01-558-3565 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.