PartsTable
Technical Data Sheet
21900 ✓ Verified by PartsTable
Biamp · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

Desono™ P6 is a two-way passive coaxial loudspeaker intended for full range music reproduction in distributed audio applications. It delivers high intelligibility coupled with a wide coverage area, allowing system designers to use fewer speakers while maintaining superior levels of speech intelligibility.<br><br>The P6 utilizes a 6-position switchable transformer ranging from 1.875W to 60W with low-impedance bypass for 70V/100V operation, making it an excellent choice for large areas of BGM.<br><br>Designed with the installer in mind, the P6 also comes pre-terminated with Magic Cable, a composite cable comprised of two aircraft cables, two audio conductors jacketed separately, and two ripcords for slicing through the cable jackets.<br><br>Desono P6 is designed for outdoor splash applications such as patios or concourses, and an ideal choice for both indoor and outdoor distributed audio applications that demand superior speech intelligibility and full range music reproduction.<br><br>Ce This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-662-7145, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO MRO_GENERAL 21900
NSN: 3120-00-662-7145
FSC: 3120
CAGE: 71871 — ALFA LAVAL INC (USA)
SPECIFICATIONS
materialSTEEL
shell_typeSOLID
corner_shapeSQUARE ALL CORNERS
overall_length3.000 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES OVERALL
flange_diameter0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN
hardness_rating31.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
special_features10 AMPS; ANTI-SURGE; END ITEM APPLICATION 6530-01-459-4569; HYRROCOLLATOR,COLD PACK CHILLING UNIT; MODEL C-2
style_designatorPLAIN FLANGED
surface_treatmentPASSIVATE OVERALL
mating_end_quantity2
under_flange_height0.085 INCHES NOMINAL IN
NSN3120-00-662-7145
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 21900 · Biamp ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
CORNER SHAPE: SQUARE ALL CORNERS
MATERIAL: COPPER ALLOY OVERALL
SURFACE FINISH: 63.0 MICROINCHES OVERALL
BODY OUTSIDE DIAMETER: 2.1690 INCHES MINIMUM AND 2.1710 INCHES MAXIMUM IN
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
BODY INSIDE DIAMETER: 1.9600 INCHES MINIMUM AND 1.9705 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE ALL CORNERS
MATERIALCOPPER ALLOY OVERALL
SURFACE FINISH63.0 MICROINCHES OVERALL
OVERALL LENGTH1.0000 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.1690 INCHES MINIMUM AND 2.1710 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIALOIL LUBRICATING LUBRICATION
BODY INSIDE DIAMETER1.9600 INCHES MINIMUM AND 1.9705 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
A2113Interchangeable
interchangeable cross-reference
interchangeable
60264Interchangeable
interchangeable cross-reference
interchangeable
TRU-4884Interchangeable
interchangeable cross-reference
interchangeable
IPC21900Interchangeable
interchangeable cross-reference
interchangeable
1049-000-A000Interchangeable
interchangeable cross-reference
interchangeable
21900Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21900?
21900 is a ADAPTER,PRESSURE TEST manufactured by Biamp. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21900?
There are 10 known substitutes for 21900: A2113, 60264, TRU-4884 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21900?
21900 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-662-7145. This indicates validated use in U.S. government and defense supply chains.
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