PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1310-B503Cartridge,37 Millimeter

Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics · NSN 1310-00-028-4386 · FSC 1310 · No Item Name Available
Verified by PartsTable
NSN 1310-00-028-4386 — this item is cataloged by the U.S. Government under National Stock Number 1310-00-028-4386. Primary manufacturer part number: 1310-B503.
Features
  • Cartridge,37 Millimeter — FSC 1310
  • Weapon for Which Designed: GUN, AUTOMATIC M1A2
  • Material: COPPER ALLOY CARTRIDGE CASE
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY CARTRIDGE CASE MATERIAL,UNIT PACKAGE QUANTITY,UNIT PACKAGE TYPE,AND PACKAGE MODEL NUMBER
  • Fuze Type: INERT
  • Fuze Model Number: M50
  • Dod Ammunition Code: 1310-B503
  • Muzzle Velocity: 2600.0 FEET PER SECOND NOMINAL FT
Applications
  • Applications requiring Copper Alloy Cartridge Case construction
General Description

The Cartridge,37 Millimeter, cataloged under National Stock Number 1310-00-028-4386, is classified within Federal Supply Class 1310 (No Item Name Available) of the Ammunition and Explosives group. The primary manufacturer of record is Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics. Government technical data includes 9 verified specifications, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1310-00-028-4386
Primary Part Number1310-B503
Item NameCartridge,37 Millimeter
FSC / FSG1310 / 13 — No Item Name Available
ManufacturerDepartment of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics
StatusACTIVE
Weapon for Which DesignedGUN, AUTOMATIC M1A2
MaterialCOPPER ALLOY CARTRIDGE CASE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY CARTRIDGE CASE MATERIAL,UNIT PACKAGE QUANTITY,UNIT PACKAGE TYPE,AND PACKAGE MODEL NUMBER
Fuze TypeINERT
Fuze Model NumberM50
Dod Ammunition Code1310-B503
Muzzle Velocity2600.0 FEET PER SECOND NOMINAL FT
Cartridge Model NumberM55A1
Cartridge Design TypeTARGET PRACTICE-TRACER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-00-411-526175172 INTERCHANGEABLE
Washer,flat
Trico Products Corporation
4520-01-033-5250VDH286-4 INTERCHANGEABLE
Heating Element,electrical,nonim
Valad Electric Heating Corp.
5360-01-324-0024 INTERCHANGEABLE
Spring,helical,compression
5977-01-467-940975172 INTERCHANGEABLE
Brush,electrical Contact
Electro-Tec Corp Dba Moog Inc., Components Group
Cross-Reference Index
Part NumberManufacturer
1310-B503 Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics (USA)
75-1-72 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA)
Related Parts
5310-00-411-5261INTERCHANGEABLE
WASHER,FLAT
75172
4520-01-033-5250INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
VDH286-4
5360-01-324-0024INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5977-01-467-9409INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
75172

Frequently Asked Questions

What is NSN 1310-00-028-4386?

NSN 1310-00-028-4386 is a Cartridge,37 Millimeter, manufactured by Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics, classified under FSC 1310 (No Item Name Available). Status: active.

What are the part numbers for NSN 1310-00-028-4386?

NSN 1310-00-028-4386 has 2 cross-referenced part numbers: 1310-B503 (Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics), 75-1-72 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament).

What NSN replaces 1310-00-028-4386?

There are 4 known substitutes for 1310-00-028-4386: 5310-00-411-5261, 4520-01-033-5250, 5360-01-324-0024 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1310-B503?

Key specifications for 1310-B503: Weapon for Which Designed: GUN, AUTOMATIC M1A2; Material: COPPER ALLOY CARTRIDGE CASE; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY CARTRIDGE CASE MATERIAL,UNIT PACKAGE QUANTITY,UNIT PACKAGE TYPE,AND PACKAGE MODEL NUMBER; Fuze Type: INERT. 9 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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