NSN 5340-01-657-3939 · NIIN 016573939 · Part number 3RED
Master Lock Company Llc · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 38797
Government record, cited
NSN 5340-01-657-3939 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-657-3939. Manufacturer of record part number: 3RED.
Also searched as5340-01-657-3939 ·
5340016573939 ·
NIIN 016573939 ·
01-657-3939 ·
FSC 5340 Hardware, Commercial · CAGE 38797 · 3RED · PLO-3 RED
The Padlock, cataloged under National Stock Number 5340-01-657-3939, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Master Lock Company Llc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5340-01-657-3939
Primary Part Number
3RED
Item Name
Padlock
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
Master Lock Company Llc
Status
ACTIVE
Color
RED
Material
STEEL OVERALL
Shackle Diameter
0.281 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068
COVER,ACCESS
5340-00-000-0132
SEAT,HELICAL COMPRESSION SPRING
5340-00-000-8150
5340-00-000-8150 · Item name not on file
5340-00-001-1251
5340-00-001-1251 · Item name not on file
5340-00-001-1264
STRAP,WEBBING
5340-00-001-1265
STRAP,WEBBING
5340-00-001-1266
STRAP,WEBBING
5340-00-001-1275
HANDLE,DOOR
Frequently Asked Questions
What is NSN 5340-01-657-3939?
NSN 5340-01-657-3939 is a Padlock, manufactured by Master Lock Company Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-01-657-3939?
NSN 5340-01-657-3939 has 3 manufacturer part numbers on file: PLO-3 RED (Total Lockout (safety) Ltd), 3RED (Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt)), 3RED (Master Lock Company Llc).
What are the specifications of 3RED?
Key specifications for 3RED: Overall Height: 0.750 INCHES NOMINAL IN; Overall Width: 1.563 INCHES NOMINAL IN; Color: RED; Material: STEEL OVERALL. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5340-01-657-3939 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.