PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4221Calibrator,audio Level

B-K Medical Systems, Inc. · NSN 6625-01-094-8486 · FSC 6625 · No Item Name Available
Verified by PartsTable
NSN 6625-01-094-8486 — this item is cataloged by the U.S. Government under National Stock Number 6625-01-094-8486. Primary manufacturer part number: 4221.
Features
  • Calibrator,audio Level — FSC 6625
  • Functional Description: FACILITATES HIGHT PRESSURE, LOWFREQUENCY CALIBRATION FOR 1/8, 1/4, 1/2 AND 1 IN. MICROPHONES AND HIGH LEVEL MICROPHONE DISTORTION MEASUREMENTS IN
  • Functional Description: FACILITATES HIGHT PRESSURE, LOWFREQUENCY CALIBRATION FOR 1/8, 1/4, 1/2 AND 1 IN. MICROPHONES AND HIGH LEVEL MICROPHONE DISTORTION MEASUREMENTS IN
  • 1 verified cross-reference
  • Primary manufacturer: B-K Medical Systems, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Calibrator,audio Level, cataloged under National Stock Number 6625-01-094-8486, is classified within Federal Supply Class 6625 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is B-K Medical Systems, Inc.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN6625-01-094-8486
Primary Part Number4221
Item NameCalibrator,audio Level
FSC / FSG6625 / 66 — No Item Name Available
ManufacturerB-K Medical Systems, Inc.
StatusACTIVE
Functional DescriptionFACILITATES HIGHT PRESSURE, LOWFREQUENCY CALIBRATION FOR 1/8, 1/4, 1/2 AND 1 IN. MICROPHONES AND HIGH LEVEL MICROPHONE DISTORTION MEASUREMENTS IN
Functional DescriptionFACILITATES HIGHT PRESSURE, LOWFREQUENCY CALIBRATION FOR 1/8, 1/4, 1/2 AND 1 IN. MICROPHONES AND HIGH LEVEL MICROPHONE DISTORTION MEASUREMENTS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-585-3866 (8616294)
HAZMATNo
Shelf Life Code0
Criticality CodeG
Unit of IssueEA
SMR CodeL
Weight4.0000 lbs
Cube0.2595 cu ft
Verified Substitutes 12
6625-00-585-38668616294 SUCCESSOR
Resistance Standard
Us Army Aviation and Missile Command
5340-00-015-9138 INTERCHANGEABLE
Leg,case
9390-00-297-2001AS0422-1 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
Naval Inventory Control Point
3020-00-517-0618D142 INTERCHANGEABLE
Gear,helical
Fairbanks Morse, Llc
6135-00-880-1026221 INTERCHANGEABLE
Battery,nonrechargeable
American National Standards Institute Incorporated Dba American National Standards Institute
3010-00-893-497642-2-1-32 INTERCHANGEABLE
Actuator,electromechanical,rotar
Celtech Corporation Div Use CAGE 65552 for All Orders
6515-01-061-62031A8506 INTERCHANGEABLE
Blood Collecting and Dispensing
Baxter Healthcare Corp IV Systems/gov Sales
5330-01-090-23404221 INTERCHANGEABLE
Gasket
Bunn-O-Matic Corporation Div Government Sales
4940-01-090-8229 INTERCHANGEABLE
Tester,hydraulic Hose Assembly
2910-01-123-3849 INTERCHANGEABLE
Parts Kit,carburetor
Cross-Reference Index
Part NumberManufacturer
4221 B-K Medical Systems, Inc. (USA)
Related Parts
SUCCESSOR 6625-00-585-3866 Resistance Standard · 8616294
5340-00-015-9138INTERCHANGEABLE
LEG,CASE
9390-00-297-2001INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
AS0422-1
3020-00-517-0618INTERCHANGEABLE
GEAR,HELICAL
D142
6135-00-880-1026INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
221
3010-00-893-4976INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
42-2-1-32
6515-01-061-6203INTERCHANGEABLE
BLOOD COLLECTING AND DISPENSING
1A8506
5330-01-090-2340INTERCHANGEABLE
GASKET
4221
4940-01-090-8229INTERCHANGEABLE
TESTER,HYDRAULIC HOSE ASSEMBLY
2910-01-123-3849INTERCHANGEABLE
PARTS KIT,CARBURETOR
6850-01-126-3103INTERCHANGEABLE
TONER-DISPERSANT KIT,PHOTOGRAPHI
4221
5340-01-285-4752INTERCHANGEABLE
STANDOFF,THREADED,SPACING
NAS1830B04B06

Frequently Asked Questions

What is NSN 6625-01-094-8486?

NSN 6625-01-094-8486 is a Calibrator,audio Level, manufactured by B-K Medical Systems, Inc., classified under FSC 6625 (No Item Name Available). Status: active.

What are the part numbers for NSN 6625-01-094-8486?

NSN 6625-01-094-8486 has 1 cross-referenced part number: 4221 (B-K Medical Systems, Inc.).

What NSN replaces 6625-01-094-8486?

There are 12 known substitutes for 6625-01-094-8486: 6625-00-585-3866, 5340-00-015-9138, 9390-00-297-2001 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4221?

Key specifications for 4221: Special Features: PRODUCES 164 DB (172 DB WITH TONE BURST) RE 20 UPA MAX FROM 3 HZ- TO 10000 HZ AND LESS THAN 0, 01 HZSUPPGUSED WITH SINE GENERATOR TYPE 1022 02 1027 PLUS POWER AMPLIFIER- 2706 DB; Functional Description: FACILITATES HIGHT PRESSURE, LOWFREQUENCY CALIBRATION FOR 1/8, 1/4, 1/2 AND 1 IN. MICROPHONES AND HIGH LEVEL MICROPHONE DISTORTION MEASUREMENTS IN; Special Features: PRODUCES 164 DB (172 DB WITH TONE BURST) RE 20 UPA MAX FROM 3 HZ- TO 10000 HZ AND LESS THAN 0, 01 HZSUPPGUSED WITH SINE GENERATOR TYPE 1022 02 1027 PLUS POWER AMPLIFIER- 2706 DB; Functional Description: FACILITATES HIGHT PRESSURE, LOWFREQUENCY CALIBRATION FOR 1/8, 1/4, 1/2 AND 1 IN. MICROPHONES AND HIGH LEVEL MICROPHONE DISTORTION MEASUREMENTS IN. 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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