NSN 5845-01-340-2921 · NIIN 013402921 · Part number 1521120
Lockheed Martin Corporation Div Rms - Mitchel Field · FSC 5845 — Underwater Sound Equipment · FSG 58 — Communication, Detection, and Coherent Radiation Equipment · CAGE 56232
Government record, cited
NSN 5845-01-340-2921 — this item is cataloged by the U.S. Government under National Stock Number 5845-01-340-2921. Manufacturer of record part number: 1521120.
General Characteristics Item Description: 25.047 IN. LG; WITHSTANDS 100 PSI HYDROSTATIC PRESSURE IN
1 manufacturer part number on file
Manufacturer of record: Lockheed Martin Corporation Div Rms - Mitchel Field
Identification
NSN: 5845-01-340-2921
NIIN: 013402921
FSC: 5845 — Underwater Sound Equipment
FSG: 58 — Communication, Detection, and Coherent Radiation Equipment
Primary part number: 1521120
Manufacturer: Lockheed Martin Corporation Div Rms - Mitchel Field
General Description
The Baffle,acoustic,sonar, cataloged under National Stock Number 5845-01-340-2921, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 1 specification, 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
5845-01-340-2921
Primary Part Number
1521120
Item Name
Baffle,acoustic,sonar
FSC / FSG
5845 / 58 — Underwater Sound Equipment
Manufacturer
Lockheed Martin Corporation Div Rms - Mitchel Field
Status
ACTIVE
General Characteristics Item Description
25.047 IN. LG; WITHSTANDS 100 PSI HYDROSTATIC PRESSURE IN
Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
No interchangeability data on file.
Other items in FSC 5845 — Underwater Sound Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5845-00-001-3622
5845-00-001-3622 · Item name not on file
5845-00-001-3623
5845-00-001-3623 · Item name not on file
5845-00-001-3625
DETECTING-RANGING SET SUBASSEMBL
5845-00-001-3627
5845-00-001-3627 · Item name not on file
5845-00-001-3628
5845-00-001-3628 · Item name not on file
5845-00-001-3629
5845-00-001-3629 · Item name not on file
5845-00-001-8053
5845-00-001-8053 · Item name not on file
5845-00-003-0332
5845-00-003-0332 · Item name not on file
Frequently Asked Questions
What is NSN 5845-01-340-2921?
NSN 5845-01-340-2921 is a Baffle,acoustic,sonar, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5845, Underwater Sound Equipment. Status: active.
What part numbers are listed for NSN 5845-01-340-2921?
NSN 5845-01-340-2921 has 1 manufacturer part number on file: 1521120 (Lockheed Martin Corporation Div Rms - Mitchel Field).
What are the specifications of 1521120?
Key specifications for 1521120: General Characteristics Item Description: 25.047 IN. LG; WITHSTANDS 100 PSI HYDROSTATIC PRESSURE IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 5845-01-340-2921 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 5845-01-340-2921?
NSN 5845-01-340-2921 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.