PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25ADetecting Element,directional Co

Bird Electronic Corporation Div Bird Electronic Corp · NSN 6625-00-543-9481 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-00-543-9481 — this item is cataloged by the U.S. Government under National Stock Number 6625-00-543-9481. Primary manufacturer part number: 25A.
Features
  • Detecting Element,directional Co — FSC 6625
  • Power Range: +0.0 TO 25.0 WATTS
  • Overall Diameter: 1.250 INCHES NOMINAL IN
  • Frequency Range Rating: +25.0 TO 60.0 MEGAHERTZ
  • Power Range: +0.0 TO 25.0 WATTS
  • Overall Diameter: 1.250 INCHES NOMINAL IN
  • Frequency Range Rating: +25.0 TO 60.0 MEGAHERTZ
  • 6 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Detecting Element,directional Co, cataloged under National Stock Number 6625-00-543-9481, 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 Electronic Corporation Div Bird Electronic Corp. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6625-00-543-9481
Primary Part Number25A
Item NameDetecting Element,directional Co
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerBird Electronic Corporation Div Bird Electronic Corp
StatusACTIVE
Power Range+0.0 TO 25.0 WATTS
Overall Diameter1.250 INCHES NOMINAL IN
Frequency Range Rating+25.0 TO 60.0 MEGAHERTZ
Power Range+0.0 TO 25.0 WATTS
Overall Diameter1.250 INCHES NOMINAL IN
Frequency Range Rating+25.0 TO 60.0 MEGAHERTZ
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeZN
Weight0.2000 lbs
Cube0.0163 cu ft
Verified Substitutes 12
6625-01-262-99562520 SUCCESSOR
Calibrator,electrical Power
Boonton Electronics Corporation Div Boonton Electronics
6240-00-143-3059 INTERCHANGEABLE
Lamp,incandescent
6240-00-155-8651 INTERCHANGEABLE
Lamp,incandescent
5331-00-166-1086AS3581-014 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5905-00-173-5681 INTERCHANGEABLE
Resistor,adjustable
5905-00-186-21932LA43D2500 INTERCHANGEABLE
Resistor,adjustable
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5940-00-199-962125A INTERCHANGEABLE
Terminal Board
Lucent Technologies Inc Corporate Headquarters
4730-00-277-5501250H INTERCHANGEABLE
Union,pipe
Crane Co Div Valve Div
4730-00-277-5505250H3-4IN INTERCHANGEABLE
Union,pipe
Crane Co Div Valve Div
5905-00-279-5427WL25A3000WITHPUSH1 INTERCHANGEABLE
Resistor,adjustable
Ward Leonard Ct Llc
Cross-Reference Index
Part NumberManufacturer
82014 Cdi Industries Inc (USA)
425-5666 Nimikkeistokeskus Ncb Finland (FIN)
6625PL0737936 Jednolity Indeks Materialowy - Uniform Material Index (POL)
25A PRIMARY Bird Electronic Corporation Div Bird Electronic Corp (USA)
425020-25A Bird Electronic Corporation Div Bird Electronic Corp (USA)
250H Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
Related Parts
6625-01-262-9956SUCCESSOR
CALIBRATOR,ELECTRICAL POWER
2520
6240-00-143-3059INTERCHANGEABLE
LAMP,INCANDESCENT
6240-00-155-8651INTERCHANGEABLE
LAMP,INCANDESCENT
5331-00-166-1086INTERCHANGEABLE
O-RING
AS3581-014
5905-00-173-5681INTERCHANGEABLE
RESISTOR,ADJUSTABLE
5905-00-186-2193INTERCHANGEABLE
RESISTOR,ADJUSTABLE
2LA43D2500
5940-00-199-9621INTERCHANGEABLE
TERMINAL BOARD
25A
4730-00-277-5501INTERCHANGEABLE
UNION,PIPE
250H
4730-00-277-5505INTERCHANGEABLE
UNION,PIPE
250H3-4IN
5905-00-279-5427INTERCHANGEABLE
RESISTOR,ADJUSTABLE
WL25A3000WITHPUSH1
5905-00-284-3338INTERCHANGEABLE
RESISTOR,ADJUSTABLE
0366-50P0RM5
5340-00-290-7243INTERCHANGEABLE
CAP-PLUG,PROTECTIVE,DUST AND MOI
25A

Frequently Asked Questions

What is NSN 6625-00-543-9481?

NSN 6625-00-543-9481 is a Detecting Element,directional Co, manufactured by Bird Electronic Corporation Div Bird Electronic Corp, classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-00-543-9481?

NSN 6625-00-543-9481 has 6 cross-referenced part numbers: 82014 (Cdi Industries Inc), 425-5666 (Nimikkeistokeskus Ncb Finland), 6625PL0737936 (Jednolity Indeks Materialowy - Uniform Material Index), 25A (Bird Electronic Corporation Div Bird Electronic Corp), 425020-25A (Bird Electronic Corporation Div Bird Electronic Corp) and 1 more.

What NSN replaces 6625-00-543-9481?

There are 12 known substitutes for 6625-00-543-9481: 6625-01-262-9956, 6240-00-143-3059, 6240-00-155-8651 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25A?

Key specifications for 25A: Power Range: +0.0 TO 25.0 WATTS; Special Features: 50.0 OHMS IMPEDANCE,FOR 0.875 IN. LINE SECTION IN; Overall Diameter: 1.250 INCHES NOMINAL IN; Overall Length: 1.437 INCHES NOMINAL IN. 10 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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