NSN 6625-00-481-4398 · NIIN 004814398 · Part number 551-10901-21
Kato Engineering Inc. · FSC 6625 — Electrical and Electronic Properties Measuring and Testing Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 32770
Government record, cited
NSN 6625-00-481-4398 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-481-4398. Manufacturer of record part number: 551-10901-21.
Also searched as6625-00-481-4398 ·
6625004814398 ·
NIIN 004814398 ·
00-481-4398 ·
FSC 6625 Electrical and Electronic Properties Measuring and Testing Instruments · CAGE 32770 · 551-10901-21
Mounting Facility Type and Quantity: 3 THREADED STUD(S)
Meter Body Diameter Behind Mounting Flange: 2.786 INCHES NOMINAL IN
Meter Depth Behind Mounting Flange: 1.252 INCHES NOMINAL IN
Circuit Current for Which Designed: AC
Style Designator: RECTANGULAR FLUSH MTG
Installation Design: PANEL
1 manufacturer part number on file
Identification
NSN: 6625-00-481-4398
NIIN: 004814398
FSC: 6625 — Electrical and Electronic Properties Measuring and Testing Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 551-10901-21
Manufacturer: Kato Engineering Inc.
General Description
The Ammeter, cataloged under National Stock Number 6625-00-481-4398, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Kato Engineering Inc.. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
6625-00-481-4398
Primary Part Number
551-10901-21
Item Name
Ammeter
FSC / FSG
6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments
Manufacturer
Kato Engineering Inc.
Status
ACTIVE
Mounting Facility Type and Quantity
3 THREADED STUD(S)
Meter Body Diameter Behind Mounting Flange
2.786 INCHES NOMINAL IN
Meter Depth Behind Mounting Flange
1.252 INCHES NOMINAL IN
Circuit Current for Which Designed
AC
Style Designator
RECTANGULAR FLUSH MTG
Installation Design
PANEL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 6625 — Electrical and Electronic Properties Measuring and Testing Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6625-00-000-0309
6625-00-000-0309 · Item name not on file
6625-00-000-0480
6625-00-000-0480 · Item name not on file
6625-00-001-1338
6625-00-001-1338 · Item name not on file
6625-00-001-1341
6625-00-001-1341 · Item name not on file
6625-00-001-1371
6625-00-001-1371 · Item name not on file
6625-00-001-1373
6625-00-001-1373 · Item name not on file
6625-00-001-1374
6625-00-001-1374 · Item name not on file
6625-00-001-1377
SWEEP GENERATOR SUBASSEMBLY
Frequently Asked Questions
What is NSN 6625-00-481-4398?
NSN 6625-00-481-4398 is a Ammeter, manufactured by Kato Engineering Inc., classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
What part numbers are listed for NSN 6625-00-481-4398?
NSN 6625-00-481-4398 has 1 manufacturer part number on file: 551-10901-21 (Kato Engineering Inc.).
What are the specifications of 551-10901-21?
Key specifications for 551-10901-21: Mounting Facility Type and Quantity: 3 THREADED STUD(S); Meter Body Diameter Behind Mounting Flange: 2.786 INCHES NOMINAL IN; Overall Height: 3.512 INCHES NOMINAL IN; Meter Depth Behind Mounting Flange: 1.252 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 6625-00-481-4398 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.