PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4391AMeter,special Scale

Bird Technologies Group Inc · NSN 6625-01-674-9849 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-674-9849 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-674-9849. Primary manufacturer part number: 4391A.
Features
  • Meter,special Scale — FSC 6625
  • 1 verified cross-reference
  • Primary manufacturer: Bird Technologies Group Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,special Scale, cataloged under National Stock Number 6625-01-674-9849, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bird Technologies Group Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6625-01-674-9849
Primary Part Number4391A
Item NameMeter,special Scale
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerBird Technologies Group Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-01-478-2653 (4391A)
HAZMATNo
Verified Substitutes 2
6625-01-478-26534391A SUCCESSOR
Wattmeter
Bird Electronic Corporation Div Bird Electronic Corp
6625-01-518-5123 INTERCHANGEABLE
Wattmeter
Cross-Reference Index
Part NumberManufacturer
4391A Bird Technologies Group Inc (USA)
Related Parts
SUCCESSOR 6625-01-478-2653 Wattmeter · 4391A
6625-01-518-5123INTERCHANGEABLE
WATTMETER

Frequently Asked Questions

What is NSN 6625-01-674-9849?

NSN 6625-01-674-9849 is a Meter,special Scale, manufactured by Bird Technologies Group Inc, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-674-9849?

NSN 6625-01-674-9849 has 1 cross-referenced part number: 4391A (Bird Technologies Group Inc).

What NSN replaces 6625-01-674-9849?

There are 2 known substitutes for 6625-01-674-9849: 6625-01-478-2653, 6625-01-518-5123. Verify interchangeability with system specifications before substitution.

What are the specifications of 4391A?

Key specifications for 4391A: Special Features: MONITORS PEAK PULSE POWER, PEAK ENVELOPE POWER, OR CW POWER DURING NORMAL EQUIPMENT OPERATIONS IN THE FORWARD OR REFLECTED DIRECTION; DESIGNED FOR AIR NAVIGATIONAL AIDS DME, ATC AND OTHER PULSED RF SYSTEMS; 0.45 TO 2700 MHZ FREQUENCY; SHOCK RESISTANT KEYBOARD AND RANGE SWITCHES; BUILT-IN INTERNATIONAL POWER SUPPLY/CHARGER MHz; Part Name Assigned by Controlling Agency: PEP-DUAL ELEMENT, POWER ANALYST; Special Features: MONITORS PEAK PULSE POWER, PEAK ENVELOPE POWER, OR CW POWER DURING NORMAL EQUIPMENT OPERATIONS IN THE FORWARD OR REFLECTED DIRECTION; DESIGNED FOR AIR NAVIGATIONAL AIDS DME, ATC AND OTHER PULSED RF SYSTEMS; 0.45 TO 2700 MHZ FREQUENCY; SHOCK RESISTANT KEYBOARD AND RANGE SWITCHES; BUILT-IN INTERNATIONAL POWER SUPPLY/CHARGER MHz; Part Name Assigned by Controlling Agency: PEP-DUAL ELEMENT, POWER ANALYST. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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