PartsTable TECHNICAL DATA SHEET
NSN 5840-00-217-6940Government record, cited

Block, Mirror Suppor5840-00-217-6940

NSN 5840-00-217-6940 · NIIN 002176940 · Part number 45342
L3harris Technologies, Inc Div Space & Airborne Systems · FSC 5840 — Radar Equipment, Except Airborne · FSG 58 — Communication, Detection, and Coherent Radiation Equipment · CAGE 24930
Government record, cited
NSN 5840-00-217-6940 — this item is cataloged by the U.S. Government under National Stock Number 5840-00-217-6940. Manufacturer of record part number: 45342.
Also searched as  5840-00-217-6940 · 5840002176940 · NIIN 002176940 · 00-217-6940 · FSC 5840 Radar Equipment, Except Airborne · CAGE 24930 · 45342
Nearby stock numbers  ·
Features
  • Block,mirror Suppor — FSC 5840
  • 1 manufacturer part number on file
  • Manufacturer of record: L3harris Technologies, Inc Div Space & Airborne Systems
Identification
  • NSN: 5840-00-217-6940
  • NIIN: 002176940
  • FSC: 5840 — Radar Equipment, Except Airborne
  • FSG: 58 — Communication, Detection, and Coherent Radiation Equipment
  • Primary part number: 45342
  • Manufacturer: L3harris Technologies, Inc Div Space & Airborne Systems
General Description

The Block,mirror Suppor, cataloged under National Stock Number 5840-00-217-6940, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts
Item NameBlock,mirror Suppor
FSC / FSG5840 — Radar Equipment, Except Airborne (FSG 58)
ManufacturersL3harris Technologies, Inc Div Space & Airborne Systems (CAGE 24930)
Technical Specifications
ParameterValue
NSN5840-00-217-6940
Primary Part Number45342
Item NameBlock,mirror Suppor
FSC / FSG5840 / 58 — Radar Equipment, Except Airborne
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL B — Remove Demilitarization Key Points
HazardNo hazard code in the DLA record (HMIC N)
⇄ Related Items 2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2990-01-178-982945342 POSSIBLE MATCH
PIPE,EXHAUST
Possible match (shared part number)Walker Mfg Co
5330-01-590-2458 POSSIBLE MATCH
SEAL,PLAIN ENCASED
Possible match (shared part number)
Cross-Reference Index
Part NumberManufacturer
45342 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
2990-01-178-9829POSSIBLE MATCH
PIPE,EXHAUST
45342
5330-01-590-2458POSSIBLE MATCH
SEAL,PLAIN ENCASED

Frequently Asked Questions

What is NSN 5840-00-217-6940?

NSN 5840-00-217-6940 is a Block,mirror Suppor, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.

What part numbers are listed for NSN 5840-00-217-6940?

NSN 5840-00-217-6940 has 1 manufacturer part number on file: 45342 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5840-00-217-6940?

2 possible matches (shared part number, not a government interchangeability claim): 2990-01-178-9829, 5330-01-590-2458. Verify interchangeability with system specifications before substitution.

Is NSN 5840-00-217-6940 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 5840-00-217-6940?

NSN 5840-00-217-6940 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.
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