PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

05-243Trigger Assembly

Geissele Automatics Llc · NSN 1005-01-618-8104 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-01-618-8104 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-618-8104. Primary manufacturer part number: 05-243.
Features
  • Trigger Assembly — FSC 1005
  • 2 verified cross-references
  • Primary manufacturer: Geissele Automatics Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Trigger Assembly, cataloged under National Stock Number 1005-01-618-8104, is classified within Federal Supply Class 1005 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Geissele Automatics Llc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1005-01-618-8104
Primary Part Number05-243
Item NameTrigger Assembly
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerGeissele Automatics Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2910-00-424-4637 INTERCHANGEABLE
Float,carburetor
5365-01-247-107405243 INTERCHANGEABLE
Plug,machine Thread
Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools
Cross-Reference Index
Part NumberManufacturer
05-243 PRIMARY Geissele Automatics Llc (USA)
SP401529 Nioa Trading Nioa Nominees Pty Limited Div Nioa (AUS)
Related Parts
2910-00-424-4637INTERCHANGEABLE
FLOAT,CARBURETOR
5365-01-247-1074INTERCHANGEABLE
PLUG,MACHINE THREAD
05243

Frequently Asked Questions

What is NSN 1005-01-618-8104?

NSN 1005-01-618-8104 is a Trigger Assembly, manufactured by Geissele Automatics Llc, classified under FSC 1005 (No Item Name Available). Status: active.

What are the part numbers for NSN 1005-01-618-8104?

NSN 1005-01-618-8104 has 2 cross-referenced part numbers: 05-243 (Geissele Automatics Llc), SP401529 (Nioa Trading Nioa Nominees Pty Limited Div Nioa).

What NSN replaces 1005-01-618-8104?

There are 2 known substitutes for 1005-01-618-8104: 2910-00-424-4637, 5365-01-247-1074. Verify interchangeability with system specifications before substitution.

What are the specifications of 05-243?

Key specifications for 05-243: Special Features: THE SUPER SELECT FIRE (SSF) TRIGGER IS A FORM/FIT REPLACEMENT FOR THE M4 SERIES TRIGGER. SSF IS A TWO-STAGE TRIGGER AND IS NON-ADJUSTABLE BY THE OPERATOR. 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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