PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20580Dummy Cartridge,12 Gage Shotgun

Remington Arms Company, Llc · NSN 1305-01-380-3255 · FSC 1305 · No Item Name Available
Verified by PartsTable
NSN 1305-01-380-3255 — this item is cataloged by the U.S. Government under National Stock Number 1305-01-380-3255. Primary manufacturer part number: 20580.
Features
  • Dummy Cartridge,12 Gage Shotgun — FSC 1305
  • Unable to Decode: UNABLE TO DECODE
  • Cartridge Design Type: INERT
  • Cartridge Model Number: MK242,MOD 0
  • Gross Weight: 2.9 SHIPPING CONTAINER POUNDS
  • Dod Ammunition Code: 1305-AA55
  • 4 verified cross-references
  • Primary manufacturer: Remington Arms Company, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Dummy Cartridge,12 Gage Shotgun, cataloged under National Stock Number 1305-01-380-3255, is classified within Federal Supply Class 1305 (No Item Name Available) of the Ammunition and Explosives group. The primary manufacturer of record is Remington Arms Company, Llc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1305-01-380-3255
Primary Part Number20580
Item NameDummy Cartridge,12 Gage Shotgun
FSC / FSG1305 / 13 — No Item Name Available
ManufacturerRemington Arms Company, Llc
StatusACTIVE
Unable to DecodeUNABLE TO DECODE
Cartridge Design TypeINERT
Cartridge Model NumberMK242,MOD 0
Gross Weight2.9 SHIPPING CONTAINER POUNDS
Dod Ammunition Code1305-AA55
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3120-00-294-000120580 INTERCHANGEABLE
Bushing,sleeve
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5950-00-784-5905 INTERCHANGEABLE
Transformer,radio Frequency
5999-01-266-393320580 INTERCHANGEABLE
Contact,electrical
Mark Industries
5130-01-652-1509 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
20580 Remington Arms Company, Llc (USA)
P04085OC Olin Corporation Dba Brass Mill Products Div Brass Division (USA)
P04085OC Olin Corp Div Olin Corporation (USA)
1305-AA55 Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics (USA)
Related Parts
3120-00-294-0001INTERCHANGEABLE
BUSHING,SLEEVE
20580
5950-00-784-5905INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5999-01-266-3933INTERCHANGEABLE
CONTACT,ELECTRICAL
20580
5130-01-652-1509INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 1305-01-380-3255?

NSN 1305-01-380-3255 is a Dummy Cartridge,12 Gage Shotgun, manufactured by Remington Arms Company, Llc, classified under FSC 1305 (No Item Name Available). Status: active.

What are the part numbers for NSN 1305-01-380-3255?

NSN 1305-01-380-3255 has 4 cross-referenced part numbers: 20580 (Remington Arms Company, Llc), P04085OC (Olin Corporation Dba Brass Mill Products Div Brass Division), P04085OC (Olin Corp Div Olin Corporation), 1305-AA55 (Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics).

What NSN replaces 1305-01-380-3255?

There are 4 known substitutes for 1305-01-380-3255: 3120-00-294-0001, 5950-00-784-5905, 5999-01-266-3933 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20580?

Key specifications for 20580: Unable to Decode: UNABLE TO DECODE; Cartridge Design Type: INERT; Special Features: USED FOR TRAINING; DO TO PROGRAMING EDITS, THIS ITEM HAS BOTH A NALC-CWDC AND A DODAC-1305-AA55; Cartridge Model Number: MK242,MOD 0. 6 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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