PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1557Lock Set

Master Lock Company Llc · NSN 5340-01-509-7800 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-509-7800 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-509-7800. Primary manufacturer part number: 1557.
Features
  • Lock Set — FSC 5340
  • Supplementary Features: SET OF TWO COMBINATION LOCKS WITH THE SAME COMBINATION AND A 20 INCH CABLE IN
  • 1 verified cross-reference
  • Primary manufacturer: Master Lock Company Llc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Lock Set, cataloged under National Stock Number 5340-01-509-7800, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Master Lock Company Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-509-7800
Primary Part Number1557
Item NameLock Set
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMaster Lock Company Llc
StatusACTIVE
Supplementary FeaturesSET OF TWO COMBINATION LOCKS WITH THE SAME COMBINATION AND A 20 INCH CABLE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
5998-00-020-02311557 INTERCHANGEABLE
Electronic Components Assembly
Mission Systems Davenport Inc.
5930-00-105-82531557 INTERCHANGEABLE
Switch,toggle
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5325-00-200-7526674891 INTERCHANGEABLE
Ring,retaining
General Motors Corp
5365-00-289-492610A2512 INTERCHANGEABLE
Plug,machine Thread
Napco International Llc Dba Napco International Inc
5325-00-406-5303K100H595-08 INTERCHANGEABLE
Insert,panel Fastener
Howmet Global Fastening Systems Inc Div Rosan Products
4330-00-436-2384 INTERCHANGEABLE
Filter Body,fluid
6625-01-116-6358525-0001020 INTERCHANGEABLE
Calibrator
American Hofmann Corp
5930-01-145-6078 INTERCHANGEABLE
Switch,rotary
4730-01-244-841405705B-C04 INTERCHANGEABLE
Elbow,pipe to Hose
Danfoss Power Solutions II, Llc
5985-01-294-5756 INTERCHANGEABLE
Line Section,radio Frequency Tra
Cross-Reference Index
Part NumberManufacturer
1557 PRIMARY Master Lock Company Llc (USA)
Related Parts
5998-00-020-0231INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
1557
5930-00-105-8253INTERCHANGEABLE
SWITCH,TOGGLE
1557
5325-00-200-7526INTERCHANGEABLE
RING,RETAINING
674891
5365-00-289-4926INTERCHANGEABLE
PLUG,MACHINE THREAD
10A2512
5325-00-406-5303INTERCHANGEABLE
INSERT,PANEL FASTENER
K100H595-08
4330-00-436-2384INTERCHANGEABLE
FILTER BODY,FLUID
6625-01-116-6358INTERCHANGEABLE
CALIBRATOR
525-0001020
5930-01-145-6078INTERCHANGEABLE
SWITCH,ROTARY
4730-01-244-8414INTERCHANGEABLE
ELBOW,PIPE TO HOSE
05705B-C04
5985-01-294-5756INTERCHANGEABLE
LINE SECTION,RADIO FREQUENCY TRA
5980-01-407-6827INTERCHANGEABLE
LIGHT EMITTING DIODE
2040-01-459-1680INTERCHANGEABLE
DOOR,CARGO
1557-1

Frequently Asked Questions

What is NSN 5340-01-509-7800?

NSN 5340-01-509-7800 is a Lock Set, manufactured by Master Lock Company Llc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-509-7800?

NSN 5340-01-509-7800 has 1 cross-referenced part number: 1557 (Master Lock Company Llc).

What NSN replaces 5340-01-509-7800?

There are 12 known substitutes for 5340-01-509-7800: 5998-00-020-0231, 5930-00-105-8253, 5325-00-200-7526 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1557?

Key specifications for 1557: Supplementary Features: SET OF TWO COMBINATION LOCKS WITH THE SAME COMBINATION AND A 20 INCH CABLE IN. 1 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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