NSN 6540-01-538-6546 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-538-6546. Manufacturer of record part number: E4401-60127.
Also searched as6540-01-538-6546 ·
6540015386546 ·
NIIN 015386546 ·
01-538-6546 ·
FSC 6540 Ophthalmic Instruments, Equipment, and Supplies · CAGE 7ZXR5 · E4401-60127 · LL-H60-6312
FSC: 6540 — Ophthalmic Instruments, Equipment, and Supplies
FSG: 65 — Medical, Dental, and Veterinary Equipment
Primary part number: E4401-60127
Manufacturer: Keysight Technologies Inc
General Description
The Lens,keypad Assy, cataloged under National Stock Number 6540-01-538-6546, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is Keysight Technologies Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
6540-01-538-6546
Primary Part Number
E4401-60127
Item Name
Lens,keypad Assy
FSC / FSG
6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies
Other items in FSC 6540 — Ophthalmic Instruments, Equipment, and Supplies
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6540-00-001-0100
6540-00-001-0100 · Item name not on file
6540-00-001-0101
LENS,OPHTHALMIC,SPHERE
6540-00-001-0101
LENS,OPHTHALMIC,SPHERE
6540-00-001-0102
6540-00-001-0102 · Item name not on file
6540-00-001-0103
6540-00-001-0103 · Item name not on file
6540-00-001-0104
6540-00-001-0104 · Item name not on file
6540-00-001-0105
6540-00-001-0105 · Item name not on file
6540-00-001-0106
6540-00-001-0106 · Item name not on file
Frequently Asked Questions
What is NSN 6540-01-538-6546?
NSN 6540-01-538-6546 is a Lens,keypad Assy, manufactured by Keysight Technologies Inc, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
What part numbers are listed for NSN 6540-01-538-6546?
NSN 6540-01-538-6546 has 1 manufacturer part number on file: E4401-60127 (Keysight Technologies Inc).
What are the specifications of E4401-60127?
Key specifications for E4401-60127: End Item Identification: FOR E4407S-357(28480), ANALYZER, SPECTRUM. 0 specifications are documented in the U.S. Government catalog.
Is NSN 6540-01-538-6546 hazardous material?
No hazard code in the DLA record (HMIC N). 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.