PartsTable TECHNICAL DATA SHEET

NSN 6625-01-528-1728Government record, cited

Ammeter6625-01-528-1728

NSN 6625-01-528-1728 · NIIN 015281728 · Part number 685-3-R-3MAAC-3AAC

Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc · FSC 6625 — Electrical and Electronic Properties Measuring and Testing Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 74542

Government record, cited

NSN 6625-01-528-1728 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-528-1728. Manufacturer of record part number: 685-3-R-3MAAC-3AAC.

Also searched as 6625-01-528-1728 · 6625015281728 · NIIN 015281728 · 01-528-1728 · FSC 6625 Electrical and Electronic Properties Measuring and Testing Instruments · CAGE 74542 · 685-3-R-3MAAC-3AAC · 216-1022-010

Nearby stock numbers ← 6625-01-528-1168 Adapter Set, Test · 6625-01-528-1857 Probe, Electrical Field, Interfere →

Features

Ammeter — FSC 6625
Indicator Type: DIAL W/POINTER
Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE
Meter Body Height Behind Mounting Flange: 2.800 INCHES NOMINAL IN
Power Source: EXTERNAL
Style Designator: RECTANGULAR FLUSH MTG
Meter Body Width Behind Mounting Flange: 2.380 INCHES NOMINAL IN
Color: UNABLE TO DECODE

Identification

NSN: 6625-01-528-1728
NIIN: 015281728
FSC: 6625 — Electrical and Electronic Properties Measuring and Testing Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 685-3-R-3MAAC-3AAC
Manufacturer: Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc

General Description

The Ammeter, cataloged under National Stock Number 6625-01-528-1728, 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 Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications

Parameter	Value
NSN	6625-01-528-1728
Primary Part Number	685-3-R-3MAAC-3AAC
Item Name	Ammeter
FSC / FSG	6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments
Manufacturer	Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc
Status	ACTIVE
Indicator Type	DIAL W/POINTER
Mounting Arrangement Style	FOUR HOLE/STUD RECTANGULAR/SQUARE
Meter Body Height Behind Mounting Flange	2.800 INCHES NOMINAL IN
Power Source	EXTERNAL
Style Designator	RECTANGULAR FLUSH MTG
Meter Body Width Behind Mounting Flange	2.380 INCHES NOMINAL IN
Color	UNABLE TO DECODE
Center to Center Distance Between Mounting Facilities Parallel to Width	1.830 INCHES NOMINAL IN
Material	ALUMINUM
Measurement Range	+0.0 TO 3.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
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)
Shelf Life Code	0
Criticality Code	X
Unit of Issue	EA
Acquisition advice code	JN

Cross-Reference Index

Part Number	Manufacturer
685-3-R-3MAAC-3AAC PRIMARY	Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc (USA)

Reference documents

Reference	Meaning
216-1022-010	7/2 Vendor item drawing reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems

No interchangeability data on file.

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 6625-01-528-1728?

NSN 6625-01-528-1728 is a Ammeter, manufactured by Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.

What part numbers are listed for NSN 6625-01-528-1728?

NSN 6625-01-528-1728 has 1 manufacturer part number on file: 685-3-R-3MAAC-3AAC (Hoyt Electrical Instrument Works, Inc. Dba Hoyt Electrical Instrument Works Inc).

What are the specifications of 685-3-R-3MAAC-3AAC?

Key specifications for 685-3-R-3MAAC-3AAC: Overall Height: 3.080 INCHES NOMINAL IN; Indicator Type: DIAL W/POINTER; Mounting Arrangement Style: FOUR HOLE/STUD RECTANGULAR/SQUARE; Meter Body Height Behind Mounting Flange: 2.800 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.

Is NSN 6625-01-528-1728 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.

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