PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12999211Plunger,detent

Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate · NSN 5340-01-502-5471 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-502-5471 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-502-5471. Primary manufacturer part number: 12999211.
Features
  • Plunger,detent — FSC 5340
  • Supplementary Features: LAUNCHER,GRENADE,40MM,M203 FOR M16 RIFLE MM
  • 2 verified cross-references
  • Primary manufacturer: Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Plunger,detent, cataloged under National Stock Number 5340-01-502-5471, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-502-5471
Primary Part Number12999211
Item NamePlunger,detent
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerCombat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
StatusCANCELLED
Supplementary FeaturesLAUNCHER,GRENADE,40MM,M203 FOR M16 RIFLE MM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 8
5305-00-054-6673 INTERCHANGEABLE
Screw,machine
5315-00-740-643923069 INTERCHANGEABLE
Pin,straight,threaded
Briggs and Stratton Corp
1650-00-944-656623069 INTERCHANGEABLE
Lever,assembly
Mid-America Aerotech, Llc
5305-00-958-7751129992-11 INTERCHANGEABLE
Screw,machine
Ge Aviation Systems Llc
5950-01-069-7196 INTERCHANGEABLE
Transformer,radio Frequency
6130-01-136-226123069 INTERCHANGEABLE
Power Supply Assembly
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
4820-01-258-498923069 INTERCHANGEABLE
Stem,needle Valve
Brunswick Corp Dba Mercury Marine Div Mercury Marine
3040-01-517-0501 INTERCHANGEABLE
Extension Shaft
Cross-Reference Index
Part NumberManufacturer
12999211 PRIMARY Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
23069 Charles Reed Knight Jr Dba Knight's Armament Company (USA)
Related Parts
5305-00-054-6673INTERCHANGEABLE
SCREW,MACHINE
5315-00-740-6439INTERCHANGEABLE
PIN,STRAIGHT,THREADED
23069
1650-00-944-6566INTERCHANGEABLE
LEVER,ASSEMBLY
23069
5305-00-958-7751INTERCHANGEABLE
SCREW,MACHINE
129992-11
5950-01-069-7196INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
6130-01-136-2261INTERCHANGEABLE
POWER SUPPLY ASSEMBLY
23069
4820-01-258-4989INTERCHANGEABLE
STEM,NEEDLE VALVE
23069
3040-01-517-0501INTERCHANGEABLE
EXTENSION SHAFT

Frequently Asked Questions

What is NSN 5340-01-502-5471?

NSN 5340-01-502-5471 is a Plunger,detent, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-01-502-5471?

NSN 5340-01-502-5471 has 2 cross-referenced part numbers: 12999211 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 23069 (Charles Reed Knight Jr Dba Knight's Armament Company).

What NSN replaces 5340-01-502-5471?

There are 8 known substitutes for 5340-01-502-5471: 5305-00-054-6673, 5315-00-740-6439, 1650-00-944-6566 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12999211?

Key specifications for 12999211: Supplementary Features: LAUNCHER,GRENADE,40MM,M203 FOR M16 RIFLE MM. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-01-502-5471 still in active supply?

NSN 5340-01-502-5471 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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