NSN 5340-01-661-2304 · NIIN 016612304 · Part number 3BLK
Master Lock Company Llc Dba Master Lock Div Master Lock · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 31YW0
Government record, cited
NSN 5340-01-661-2304 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-661-2304. Manufacturer of record part number: 3BLK.
Also searched as5340-01-661-2304 ·
5340016612304 ·
NIIN 016612304 ·
01-661-2304 ·
FSC 5340 Hardware, Commercial · CAGE 31YW0 · 3BLK
Manufacturer of record: Master Lock Company Llc Dba Master Lock Div Master Lock
Identification
NSN: 5340-01-661-2304
NIIN: 016612304
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 3BLK
Manufacturer: Master Lock Company Llc Dba Master Lock Div Master Lock
General Description
The Padlock, cataloged under National Stock Number 5340-01-661-2304, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Master Lock Company Llc Dba Master Lock Div Master Lock. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 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
5340-01-661-2304
Primary Part Number
3BLK
Item Name
Padlock
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
Master Lock Company Llc Dba Master Lock Div Master Lock
Status
ACTIVE
Shackle Clearance
19.0 MILLIMETERS NOMINAL MM
Operating Mechanism Type
PIN TUMBLER
Material
STEEL OVERALL
Shackle Diameter
7.0 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Master Lock Company Llc Dba Master Lock Div Master Lock (USA)
No interchangeability data on file.
Other items in FSC 5340 — Hardware, Commercial
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 5340-01-661-2304?
NSN 5340-01-661-2304 is a Padlock, manufactured by Master Lock Company Llc Dba Master Lock Div Master Lock, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-01-661-2304?
NSN 5340-01-661-2304 has 2 manufacturer part numbers on file: 3BLK (Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt)), 3BLK (Master Lock Company Llc Dba Master Lock Div Master Lock).
What are the specifications of 3BLK?
Key specifications for 3BLK: Shackle Clearance: 19.0 MILLIMETERS NOMINAL MM; Operating Mechanism Type: PIN TUMBLER; Part Name Assigned by Controlling Agency: PADLOCK; Material: STEEL OVERALL. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5340-01-661-2304 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.