PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

EP3-LPRPlug,ear

Surefire, Llc Dba Surefire Llc · NSN 6515-01-549-6457 · FSC 6515 · No Item Name Available
Verified by PartsTable
NSN 6515-01-549-6457 — this item is cataloged by the U.S. Government under National Stock Number 6515-01-549-6457. Primary manufacturer part number: EP3-LPR.
Features
  • Plug,ear — FSC 6515
  • 5 verified cross-references
  • Primary manufacturer: Surefire, Llc Dba Surefire Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Plug,ear, cataloged under National Stock Number 6515-01-549-6457, is classified within Federal Supply Class 6515 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Surefire, Llc Dba Surefire Llc. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: PR.

Technical Specifications
ParameterValue
NSN6515-01-549-6457
Primary Part NumberEP3-LPR
Item NamePlug,ear
FSC / FSG6515 / 65 — No Item Name Available
ManufacturerSurefire, Llc Dba Surefire Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssuePR
Verified Substitutes 11
5340-01-545-294913027970 SUCCESSOR
Thread Protector,ba
General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
5999-00-138-25283454-1 INTERCHANGEABLE
Module,panel Contro
Wing Corp
5930-00-153-49163454 INTERCHANGEABLE
Switch,pressure
Altec Air, Llc Dba Altec Llc
5325-00-291-0812 INTERCHANGEABLE
Grommet,nonmetallic
4320-00-394-31193454 INTERCHANGEABLE
Impeller,pump,centrifugal
Industrial Technologies and Services Llc
4820-01-055-5469 INTERCHANGEABLE
Valve,check
5910-01-080-9973120525005 INTERCHANGEABLE
Capacitor,fixed,metallized,paper
Eaton Corporation
5998-01-220-178762404-250 INTERCHANGEABLE
Electronic Components Assembly
Dynalec Corporation
5120-01-335-81193454 INTERCHANGEABLE
Adapter,socket Wrench
Wright Tool Co
2520-01-398-19983-4-54-1 INTERCHANGEABLE
Yoke,universal Joint,vehicular
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
Cross-Reference Index
Part NumberManufacturer
EP3-LPR PRIMARY Surefire, Llc Dba Surefire Llc (USA)
3454 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
EP3-L Mckay Radio Accessories Mckay Associates Pty Ltd (AUS)
SONIC DEFENDERS LARGE Surefire, Llc Dba Surefire Llc (USA)
6515NCM071318 Defense Medical Standardization Board (USA)
Related Parts
5340-01-545-2949SUCCESSOR
THREAD PROTECTOR,BA
13027970
5999-00-138-2528INTERCHANGEABLE
MODULE,PANEL CONTRO
3454-1
5930-00-153-4916INTERCHANGEABLE
SWITCH,PRESSURE
3454
5325-00-291-0812INTERCHANGEABLE
GROMMET,NONMETALLIC
4320-00-394-3119INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
3454
4820-01-055-5469INTERCHANGEABLE
VALVE,CHECK
5910-01-080-9973INTERCHANGEABLE
CAPACITOR,FIXED,METALLIZED,PAPER
120525005
5998-01-220-1787INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
62404-250
5120-01-335-8119INTERCHANGEABLE
ADAPTER,SOCKET WRENCH
3454
2520-01-398-1998INTERCHANGEABLE
YOKE,UNIVERSAL JOINT,VEHICULAR
3-4-54-1
2920-01-498-4391INTERCHANGEABLE
MODULATOR ASSEMBLY,IGNITION
3454

Frequently Asked Questions

What is NSN 6515-01-549-6457?

NSN 6515-01-549-6457 is a Plug,ear, manufactured by Surefire, Llc Dba Surefire Llc, classified under FSC 6515 (No Item Name Available). Status: active.

What are the part numbers for NSN 6515-01-549-6457?

NSN 6515-01-549-6457 has 5 cross-referenced part numbers: EP3-LPR (Surefire, Llc Dba Surefire Llc), 3454 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), EP3-L (Mckay Radio Accessories Mckay Associates Pty Ltd), SONIC DEFENDERS LARGE (Surefire, Llc Dba Surefire Llc), 6515NCM071318 (Defense Medical Standardization Board).

What NSN replaces 6515-01-549-6457?

There are 11 known substitutes for 6515-01-549-6457: 5340-01-545-2949, 5999-00-138-2528, 5930-00-153-4916 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of EP3-LPR?

Key specifications for EP3-LPR: Part Name Assigned by Controlling Agency: EAR PLUG EP-3 SONIC DEFENDER LARGE 1PR; Special Features: EP-3 SONIC DEFENDERS, LARGE, 1 PAIR; 9DB NOISE REDUCTINOS RATING (NRR) WITH STOPPERS OUT; 16DB(NRR)WITH STOPPERS IN, LOWERS POTENTIALLY DANGEROUS NOISE LEVELS ABOVE 80DB; ERGONOMIC DESIGN CONFORMS TO THE NATRUAL SHAPE OF EAR FOR COMFORT AND EARPIECE RETENTION; MADE FROM SOFT, HYPOALLERGENIC, MEDICAL-GRADE POLYMER;LOW-PROFILE DESIGN DB. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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