NSN 5340-01-663-0138 · NIIN 016630138 · Part number 481
Master Lock Company Llc Dba Master Lock Div Master Lock Company · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 4QMB1
Government record, cited
NSN 5340-01-663-0138 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-663-0138. Manufacturer of record part number: 481.
Manufacturer of record: Master Lock Company Llc Dba Master Lock Div Master Lock Company
Identification
NSN: 5340-01-663-0138
NIIN: 016630138
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 481
Manufacturer: Master Lock Company Llc Dba Master Lock Div Master Lock Company
General Description
The Cover,access, cataloged under National Stock Number 5340-01-663-0138, 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 Company. Government technical data includes 2 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
5340-01-663-0138
Primary Part Number
481
Item Name
Cover,access
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
Master Lock Company Llc Dba Master Lock Div Master Lock Company
Status
ACTIVE
Shape
CIRCULAR
Material
PLASTIC
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 5340-01-663-0138?
NSN 5340-01-663-0138 is a Cover,access, manufactured by Master Lock Company Llc Dba Master Lock Div Master Lock Company, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-01-663-0138?
NSN 5340-01-663-0138 has 2 manufacturer part numbers on file: 481 (Master Lock Company Llc Dba Master Lock Div Master Lock Company), 06204888 (Blackwood J. Blackwood & Son Pty Ltd).
What are the specifications of 481?
Key specifications for 481: Shape: CIRCULAR; Special Features: DIELECTRIC THERMOPLASTIC; FITS 2IN (51MM) TO 5IN (127MM) DIAMETER VALVE HANDLES; COLOR: RED MM; Part Name Assigned by Controlling Agency: ROTATING GATE VALVE LOCKOUT; Material: PLASTIC. 2 specifications are documented in the U.S. Government catalog.
Is NSN 5340-01-663-0138 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.