NSN 1240-01-517-9451 · NIIN 015179451 · Part number 39101801
Northrop Grumman Systems Corporation · FSC 1240 — Optical Sighting and Ranging Equipment · FSG 12 — Fire Control Equipment · CAGE 34860
Government record, cited
NSN 1240-01-517-9451 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-517-9451. Manufacturer of record part number: 39101801.
Also searched as1240-01-517-9451 ·
1240015179451 ·
NIIN 015179451 ·
01-517-9451 ·
FSC 1240 Optical Sighting and Ranging Equipment · CAGE 34860 · 39101801
Nearby stock numbers← 1240-01-517-9275 Level, Fire Control Instrument
·
1240-01-517-9454 Fitting Opt Lit →
Features
Crossover Opt Lit — FSC 1240
1 manufacturer part number on file
Manufacturer of record: Northrop Grumman Systems Corporation
Identification
NSN: 1240-01-517-9451
NIIN: 015179451
FSC: 1240 — Optical Sighting and Ranging Equipment
FSG: 12 — Fire Control Equipment
Primary part number: 39101801
Manufacturer: Northrop Grumman Systems Corporation
General Description
The Crossover Opt Lit, cataloged under National Stock Number 1240-01-517-9451, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. 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
1240-01-517-9451
Primary Part Number
39101801
Item Name
Crossover Opt Lit
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 1240-01-517-9451?
NSN 1240-01-517-9451 is a Crossover Opt Lit, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
What part numbers are listed for NSN 1240-01-517-9451?
NSN 1240-01-517-9451 has 1 manufacturer part number on file: 39101801 (Northrop Grumman Systems Corporation).
What are the specifications of 39101801?
Key specifications for 39101801: Special Features: NEXT HIGHER ASSEMBLY 39101891; Part Name Assigned by Controlling Agency: CROSSOVER FITTING NO 1. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1240-01-517-9451 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 1240-01-517-9451?
NSN 1240-01-517-9451 has DEMIL Code B. 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.