PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

EM-1EAR Muffs,helmet

Sirchie Acquisition Co Llc · NSN 8415-01-344-8703 · FSC 8415 · No Item Name Available
Verified by PartsTable
NSN 8415-01-344-8703 — this item is cataloged by the U.S. Government under National Stock Number 8415-01-344-8703. Primary manufacturer part number: EM-1.
Features
  • EAR Muffs,helmet — FSC 8415
  • 2 verified cross-references
  • Primary manufacturer: Sirchie Acquisition Co Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The EAR Muffs,helmet, cataloged under National Stock Number 8415-01-344-8703, is classified within Federal Supply Class 8415 (No Item Name Available) of the Clothing, Individual Equipment, and Insignia group. The primary manufacturer of record is Sirchie Acquisition Co Llc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN8415-01-344-8703
Primary Part NumberEM-1
Item NameEAR Muffs,helmet
FSC / FSG8415 / 84 — No Item Name Available
ManufacturerSirchie Acquisition Co Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
9320-00-141-7166 INTERCHANGEABLE
Rubber Sheet,cellular
9540-00-148-4294 INTERCHANGEABLE
Angle,structural
7510-00-272-98057510-00-272-9805 INTERCHANGEABLE
Envelope,transparent
Georgia Department of Human Services
2825-00-388-12309805 INTERCHANGEABLE
Piston,hydraulic
Westinghouse Electric Corp
4820-00-528-23624200 INTERCHANGEABLE
Valve,check
Fluid Power, Inc.
5120-01-117-38629805 INTERCHANGEABLE
Wrench,spanner
Leslie Controls, Inc. Dba Leslie Controls Inc
2990-01-136-7083EM1 INTERCHANGEABLE
Muffler,exhaust
Mosier Fluid Power of Ohio Inc Dba Kc Mosier Co
5915-01-138-4591G100043 INTERCHANGEABLE
Filter,radio Frequency Interfere
Thales Defense & Security Inc Dba Thales Communications Inc
6515-01-216-17779805 INTERCHANGEABLE
Bag,urine Collection
Hollister Inc
6105-01-231-35499805 INTERCHANGEABLE
Motor,alternating Current
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
Cross-Reference Index
Part NumberManufacturer
EM-1 PRIMARY Sirchie Acquisition Co Llc (USA)
9805 Sirchie Acquisition Co Llc (USA)
Related Parts
9320-00-141-7166INTERCHANGEABLE
RUBBER SHEET,CELLULAR
9540-00-148-4294INTERCHANGEABLE
ANGLE,STRUCTURAL
7510-00-272-9805INTERCHANGEABLE
ENVELOPE,TRANSPARENT
7510-00-272-9805
2825-00-388-1230INTERCHANGEABLE
PISTON,HYDRAULIC
9805
4820-00-528-2362INTERCHANGEABLE
VALVE,CHECK
4200
5120-01-117-3862INTERCHANGEABLE
WRENCH,SPANNER
9805
2990-01-136-7083INTERCHANGEABLE
MUFFLER,EXHAUST
EM1
5915-01-138-4591INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
G100043
6515-01-216-1777INTERCHANGEABLE
BAG,URINE COLLECTION
9805
6105-01-231-3549INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
9805
3040-01-248-1520INTERCHANGEABLE
HOUSING,MECHANICAL DRIVE
9805
6105-01-360-8787INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT

Frequently Asked Questions

What is NSN 8415-01-344-8703?

NSN 8415-01-344-8703 is a EAR Muffs,helmet, manufactured by Sirchie Acquisition Co Llc, classified under FSC 8415 (No Item Name Available). Status: active.

What are the part numbers for NSN 8415-01-344-8703?

NSN 8415-01-344-8703 has 2 cross-referenced part numbers: EM-1 (Sirchie Acquisition Co Llc), 9805 (Sirchie Acquisition Co Llc).

What NSN replaces 8415-01-344-8703?

There are 12 known substitutes for 8415-01-344-8703: 9320-00-141-7166, 9540-00-148-4294, 7510-00-272-9805 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of EM-1?

Key specifications for EM-1: End Item Identification: ACCESSORY FOR CROWN 9000. 1 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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