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// Officer Designator · O-1 to O-10 · NATO OF-1 to OF-9

SUPPLY CORPS OFFICER (3100)

The Staff Corps community that keeps the Fleet supplied, fueled, paid, and contracted.

Supply Corps device — gold oak leaf with silver acorn (the famous "Pork Chop")
Insignia
Designator
3100
Abbreviation
SC
Community
Staff Corps
Paygrade Range
O-1 to O-10
NATO Range
OF-1 to OF-9
Category
Officer Designator

OVERVIEW

The 3100 Supply Corps designator identifies Staff Corps officers in the U.S. Navy who specialize in logistics, financial management, contracting, supply-chain management, food service, retail operations, and material readiness. Supply Corps officers serve aboard every major Navy ship, on every fleet and joint staff, at major Navy logistics commands, and at the Defense Logistics Agency. They are essential to keeping the Navy fueled, fed, paid, and supplied with everything from spare parts to ammunition to medical materiel.

Supply Corps officers wear the famous "Pork Chop" device — a gold oak leaf with silver acorn — and are universally known across the Fleet by that nickname. The community is one of the oldest and most operationally-deployed Staff Corps in the Navy.

RESPONSIBILITIES

  • Serve as Supply Officer aboard a fleet ship — feed the crew, manage parts, run the ship's store, pay and disburse
  • Lead a Department at a Defense Logistics Agency, Naval Supply Systems Command, or Fleet Logistics Center
  • Manage Navy contracts ranging from small purchases to major weapons-system acquisition
  • Direct Navy financial management, pay, and budget at major-command financial offices

HISTORY

The Navy Supply Corps was established by Congress in 1795, just four years after the founding of the Navy itself, making it one of the oldest officer communities in continuous service. Originally known as the "Pursers Corps," the community was renamed the "Pay Corps" in 1842 and finally the "Supply Corps" in 1919.

Supply Corps officers have been involved in every major Navy logistics innovation of the past two centuries — from the underway-replenishment doctrine that made the WWII Pacific campaign possible, to the modern Just-in-Time logistics systems that sustain forward-deployed forces today.

COMMISSIONING SOURCES

  • USNA
  • NROTC
  • OCS
  • STA-21
  • Lateral transfer

TRAINING PIPELINE

  1. 1. Navy Supply Corps School (NSCS) Basic Qualification Course~6 months
    Newport, RI
    Comprehensive Supply Corps basic course covering logistics, financial management, food service, contracting, and ship-supply operations.
  2. 2. Department Head Course~3 months
    NSCS, Newport, RI
    Mid-grade course preparing Lieutenants for major-supply department-head tours.
  3. 3. Specialty CoursesVarious
    NSCS / DAU / NPS
    Specialty training in contracting, financial management, or operational logistics.

TYPICAL CAREER PATH

  1. O-1/O-2
    Navy Supply Corps School + first sea tour
    Six months at NSCS Newport, RI followed by first division-officer / supply tour.
  2. O-3
    Department Head ashore
    Department head tour at a Fleet Logistics Center or NAVSUP.
  3. O-4
    Supply Officer afloat
    Supply Officer (CHOP) aboard a major surface combatant or aircraft carrier.
  4. O-5
    Major Logistics Command
    Command of a Fleet Logistics Center or major NAVSUP element.
  5. O-6
    Senior Supply Leadership
    Senior leadership at NAVSUP, DLA, or as Chief of Supply Corps.

RELATED DESIGNATORS

RELATED BASES

How to address
Verbally by rank — e.g., "Lieutenant Smith." Community is universally addressed in writing as "SC" — e.g., "LT Jane Smith, SC, USN."
Prerequisites
  • Direct commission via USNA, NROTC, or OCS into the 3100 community
  • Successful completion of the Navy Supply Corps Basic Qualification Course at the Navy Supply Corps School
  • Demonstrated business, finance, or logistics aptitude
  • Maintain Secret clearance (TS for some assignments)
Common assignments
  • Ship's Supply Officer (CHOP) aboard a destroyer, cruiser, amphib, submarine, or aircraft carrier
  • Stock Control / Aviation Supply Officer at a Navy aviation squadron
  • Department head at a Fleet Logistics Center or Naval Supply Systems Command
  • Contracting officer at the Defense Logistics Agency or Navy Acquisition program

FREQUENTLY ASKED QUESTIONS

The 3100 designator identifies a Staff Corps officer in the Navy Supply Corps — the logistics, financial management, contracting, and material-readiness community known throughout the Fleet as the "Pork Chops."

The nickname comes from the shape of the gold oak leaf and silver acorn that make up the Supply Corps device — Sailors thought it resembled a pork chop. The Supply Corps embraces the nickname proudly.

The Navy Supply Corps School (NSCS) is located on Naval Station Newport, Rhode Island, and is the central educational institution for the entire Supply Corps community.

SOURCES

Last updated 2026-05-02
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