Sargent and Greenleaf Commercial High-Security Locks: Buying Guide

Who is Sargent and Greenleaf and what do they make?

Sargent & Greenleaf — "S&G" on most spec sheets — has built safe and vault locks since 1857 out of Nicholasville, Kentucky. The brand is independent of Sargent (the ASSA ABLOY door hardware company); the two are routinely confused because the names overlap, but they make different products for different openings.

S&G's catalog breaks into four buckets: mechanical and electronic safe locks (Group 1 and Group 2, UL Type 1), vault locks, pedestrian-door pushbutton exit devices (the 2890 line), and high-security padlocks including the government-spec 8077AD. Locksmiths encounter the brand most often on bank safes, pharmacy narcotics cabinets, utility substation gates, and GSA-approved containers. For general-opening commercial mechanical locks, S&G is not the brand — but when a spec calls for a UL-listed safe lock or a federal padlock, it usually is.

Sargent and Greenleaf vs Medeco: how high-security locks compare

S&G and Medeco both sit in the high-security tier but address different openings. S&G owns the safe, vault, and container market with UL Type 1 electronic locks and Group 1/Group 2 mechanical dials. Medeco owns the door cylinder and high-security padlock market with its M3 and M4 key control platforms — pick-, drill-, and bump-resistant cylinders that key into standard door hardware.

On padlocks the two actually overlap. S&G's 8077AD is the combination padlock the federal government specifies for classified-material enclosures. Medeco's 5400 and 54515 series are keyed high-security padlocks for utility, telecom, and critical-infrastructure applications where restricted keyways and audit-trail key control matter more than a dial combination. Dormakaba's Simplex line (1000, L1000, LP1020) covers the mechanical pushbutton door lock space where S&G's 2890 would be overkill — Simplex is a cylindrical or exit-trim lock for interior offices and IT rooms, not a panic device.

Grade 1 commercial deadbolts are rated to the ANSI/BHMA A156.5 Grade 1 auxiliary-lock standard. UL safe-lock listings (Type 1, Group 1, Group 2) are a different standard set entirely — attack resistance and construction, not cycle life.

Choose Sargent & Greenleaf when:

• The opening is a safe, vault, GSA container, or pedestrian panic door
• Spec calls for UL Type 1, Group 1, Group 2, or FF-L-2937/2740 compliance
• You need a combination (dial or electronic keypad) rather than a keyed cylinder
• Federal, military, or financial-institution spec requires S&G by name

Choose Medeco when:

• The opening is a standard door, gate, or utility padlock using a keyed cylinder
• Restricted keyway and patented key control are the deciding factors
• You need high-security cylinders that retrofit existing door hardware
• Audit control is key-based, not combination-based

Choose Dormakaba Simplex when:

• Interior door needs keyless pushbutton access without electronics or batteries
• IT closet, office, or storeroom — not a safe and not a panic egress
• Budget favors mechanical over electronic access control
• You want standard cylindrical or mortise door prep, not safe-door prep

Mechanical pushbutton locks: the S&G 2890 explained

The S&G 2890 is a pedestrian-door exit device with integrated pushbutton access, not a cylindrical door lock. It's a push-bar panic device with an exterior keypad or electronic access module — the egress side always panics open per life-safety code, while the exterior side requires a combination, credential, or key override to enter. Typical deployments: utility substations, water treatment facilities, correctional sally ports, school perimeter doors.

Variants in stock include the S&G 2890 pedestrian door panic lock, the 2890 Type X exit-only panic bar for one-way doors, and the 2890 Type IV with electronic access control for keypad or credential entry. An S&G 2890 alarm kit adds local-alarm propped-door and forced-entry notification.

For interior openings that don't need panic egress, the Simplex 1011 knob lock or Simplex 5000 lever lock handle those at a fraction of the 2890's cost and complexity.

What electronic safe locks does S&G make?

S&G's electronic safe locks replaced spin-dial combination locks on most new commercial safes. All carry UL Type 1 listings for burglary-rated containers. The lineup splits by bolt action and user count:

• Spartan family (1006, 1007) — entry-level 2-user electronic safe locks. The Spartan 1006 pivot-bolt and Spartan 1007 direct-drive throw-bolt are the volume units for retail and small-business safes.
• Titan family (2006, 2007) — upgraded Spartan with improved motor and keypad feedback. See the Titan 2006 pivot-bolt and Titan 2007 direct-drive kit.
• Atlas 1004 — the Atlas swing-bolt UL Type 1 lock for applications requiring swing-bolt action.
• Audit Lock 2.0 (3006) — the Audit Lock 2.0 bolt lock adds event logging for cash-handling and pharmacy applications.
• 6120 keypad — the 6120 satin chrome keypad is the service-replacement interface for most of the above.

For mechanical dial locks still in service, S&G maintains the 6700 series (Group 2) and the 2937 (Group 1, federal spec FF-L-2937) — the 2937 complete Group 1 lock is the GSA-container standard with spy-proof dial. Replacement 6730 Group 2 safe locks with dial and ring cover older-safe service.

Need to spec a safe lock or pedestrian panic device now? Visit the Sargent & Greenleaf brand page — or request a quote with your safe-door prep dimensions and we'll match the correct S&G body and keypad.

What high-security padlocks does Sargent and Greenleaf make?

S&G's padlock line is narrower than its safe-lock catalog but critical where it's specified. The S&G 8077AD combination padlock is the federal government's spec padlock for classified-material enclosures and secure storage — four-wheel changeable combination, hardened body. The S&G 951 heavy-duty padlock is the keyed workhorse for industrial and utility applications.

Where S&G stops, other brands pick up. Medeco owns the keyed high-security padlock market for utility, telecom, and gate applications — the Medeco 5451500 indoor/outdoor 6-pin padlock and the Medeco 521 G8R weather-tight stainless padlock are the common specs. ABUS covers mid-tier weatherized applications — the ABUS 83WP-KnK/63 weatherized steel padlock and the ABUS 24IB Diskus stainless padlock are stocked for exterior gate work. For general commercial padlocks, ABUS and Medeco carry broader size and shackle options than S&G.

How does S&G fit into safes, vaults, and lock boxes?

S&G is a lock body manufacturer, not a safe manufacturer — the brand ships the lock, dial, keypad, and vault-door hardware that other companies integrate into safes, ATMs, pharmacy cabinets, and modular vaults. If you're servicing or retrofitting a commercial safe, the lock inside is almost certainly S&G (or LA GARD, now a dormakaba brand). Replacement dial-and-ring kits like the R004 black 3.75" dial ring and spy-proof variants like the D225 key-locking spy-proof dial keep legacy safes serviceable.

For vault doors, the S&G 6530 UL Group 2 vault lock is the standard specification. Safe-deposit lock service — common in bank branches — uses the S&G 4444 safe deposit lock with cut guard keys and cover plates.

Are S&G locks UL listed and GSA approved?

Yes to both, but the specific listing varies by product. UL Type 1 covers electronic combination locks on burglary-rated safes — Spartan, Titan, Atlas, and Audit Lock 2.0 all carry it. UL Group 1 and Group 2 cover mechanical combination locks: the 2937 is Group 1 (highest resistance to manipulation), the 6700 series is Group 2.

Federal specifications: FF-L-2937 covers Group 1 mechanical locks for GSA security containers — the S&G 2937 meets it. FF-L-2740 covers electromechanical locks for GSA containers (the Kaba Mas X-10 is the dominant product under that spec; S&G competes with specific electronic variants). The 8077AD padlock meets federal spec for classified-material padlocks. Always verify the current spec version against your project requirement — federal specs revise periodically.

How do you order S&G and what should you spec?

Before ordering, gather four pieces of information: (1) the opening type — safe door, vault door, pedestrian door, padlock — because S&G catalogs are organized that way; (2) the bolt action required for safe locks (pivot-bolt vs direct-drive throw-bolt vs swing-bolt — this is dictated by the safe door's existing linkage); (3) the user count and audit requirement; (4) any federal or UL spec the project must satisfy.

For replacement work, pull the existing lock's model number off the back of the lock body — S&G stamps it clearly. For new specifications, UL Type 1 Spartan or Titan is the default commercial electronic safe lock; the 2937 is the default for GSA Group 1 mechanical; the 2890 Type IV is the default for pedestrian panic doors needing exterior access control. For broader electronic access control integration — pairing the 2890 with facility credentials — plan the reader and controller selection alongside the lock, not after.

Brand / Series	BHMA / UL Standard	Cycle or Spec Rating	Best For	List Price Tier
S&G Spartan 1006	UL Type 1	UL Type 1 listed, 2 users	Commercial safe doors, retail backroom	Mid
S&G Titan 2006	UL Type 1	UL Type 1 listed, improved keypad	Pharmacy, cash-handling safes	Mid
S&G 2937 Group 1	UL Group 1 / FF-L-2937	Group 1 manipulation resistance	GSA containers, federal spec	High
S&G 2890 Pedestrian	ANSI/BHMA A156.3	Grade 1 exit device per ANSI/BHMA A156.3	Utility, correctional, perimeter doors	High
S&G 8077AD Padlock	Federal spec	Government combination padlock spec	Classified material, federal storage	High

Shop the full Sargent & Greenleaf catalog for electronic safe locks, pedestrian panic devices, and government-spec padlocks — or compare against Medeco high-security padlocks, ABUS weatherized padlocks, and Dormakaba Simplex pushbutton locks. For project pricing on quantity orders or federal-spec verification, request a quote with your opening schedule and we'll size the hardware.