NSN 5965-01-453-2657 · NIIN 014532657 · Part number EMA-2
Undersea Systems International, Inc. Dba Ocean Technology Systems · FSC 5965 — Headsets, Handsets, Microphones and Speakers · FSG 59 — Electrical and Electronic Equipment Components · CAGE 46646
Government record, cited
NSN 5965-01-453-2657 — this item is cataloged by the U.S. Government under National Stock Number 5965-01-453-2657. Manufacturer of record part number: EMA-2.
Also searched as5965-01-453-2657 ·
5965014532657 ·
NIIN 014532657 ·
01-453-2657 ·
FSC 5965 Headsets, Handsets, Microphones and Speakers · CAGE 46646 · EMA-2 · OTS-EMA-2
Manufacturer of record: Undersea Systems International, Inc. Dba Ocean Technology Systems
Identification
NSN: 5965-01-453-2657
NIIN: 014532657
FSC: 5965 — Headsets, Handsets, Microphones and Speakers
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: EMA-2
Manufacturer: Undersea Systems International, Inc. Dba Ocean Technology Systems
General Description
The Headset-Microphone, cataloged under National Stock Number 5965-01-453-2657, is classified within Federal Supply Class 5965 (Headsets, Handsets, Microphones and Speakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Undersea Systems International, Inc. Dba Ocean Technology Systems. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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
5965-01-453-2657
Primary Part Number
EMA-2
Item Name
Headset-Microphone
FSC / FSG
5965 / 59 — Headsets, Handsets, Microphones and Speakers
Manufacturer
Undersea Systems International, Inc. Dba Ocean Technology Systems
Status
ACTIVE
Earphone Quantity
2
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Undersea Systems International, Inc. Dba Ocean Technology Systems (USA)
No interchangeability data on file.
Other items in FSC 5965 — Headsets, Handsets, Microphones and Speakers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5965-00-001-1492
5965-00-001-1492 · Item name not on file
5965-00-001-7591
CUSHION,EAR
5965-00-001-7592
CUSHION,HEADBAND
5965-00-001-7593
MICROPHONE ELEMENT
5965-00-003-2686
5965-00-003-2686 · Item name not on file
5965-00-003-2690
5965-00-003-2690 · Item name not on file
5965-00-003-4754
5965-00-003-4754 · Item name not on file
5965-00-004-5510
5965-00-004-5510 · Item name not on file
Related Parts in Electrical and Electronic Equipment Components
5965-00-001-1492
5965-00-001-1492 · Item name not on file
5965-00-001-7591
CUSHION,EAR
136D300-1
5965-00-001-7592
CUSHION,HEADBAND
136D303-1
5965-00-001-7593
MICROPHONE ELEMENT
5965-00-003-2686
5965-00-003-2686 · Item name not on file
5965-00-003-2690
5965-00-003-2690 · Item name not on file
5965-00-003-4754
5965-00-003-4754 · Item name not on file
5965-00-004-5510
5965-00-004-5510 · Item name not on file
Frequently Asked Questions
What is NSN 5965-01-453-2657?
NSN 5965-01-453-2657 is a Headset-Microphone, manufactured by Undersea Systems International, Inc. Dba Ocean Technology Systems, classified under FSC 5965, Headsets, Handsets, Microphones and Speakers. Status: active.
What part numbers are listed for NSN 5965-01-453-2657?
NSN 5965-01-453-2657 has 2 manufacturer part numbers on file: EMA-2 (Undersea Systems International, Inc. Dba Ocean Technology Systems), OTS-EMA-2 (Undersea Systems International, Inc. Dba Ocean Technology Systems).
What are the specifications of EMA-2?
Key specifications for EMA-2: Earphone Quantity: 2; Special Features: EARPHONE/MICROPHONE ASSY (EMA) INC. EARPHONE HOLDERS, PUSH-TO-TALK CONTROL, HI-USE CONNECTOR, AGA COVER PLATE AND "HOT-MIC" ELEMENT (OPERATES ON WIRELESS OR HARD-WIRE COMMUNICATIONS). 1 specification is documented in the U.S. Government catalog.
Is NSN 5965-01-453-2657 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.