BM21-8 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

BM21-8: TRANSFORMER,AUDIO FREQUENCY.

The TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include scuttle: NOT INCLUDED, material: ALUMINUM PANEL, bore_shape: STRAIGHT, bore_diameter: 120.0 MILLIMETERS NOMINAL MM, opening_width: 24.000 INCHES NOMINAL IN, overall_width: 40.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-144-8962, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

BM21-8

NSN: 3110-00-144-8962
NIINs: 001448962, 012935642
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 55509 — COOPER CAMERON CORP AJAX-SUPERIOR DIV (USA)

SPECIFICATIONS

scuttle	NOT INCLUDED
material	ALUMINUM PANEL
bore_shape	STRAIGHT
bore_diameter	120.0 MILLIMETERS NOMINAL MM
opening_width	24.000 INCHES NOMINAL IN
overall_width	40.0 MILLIMETERS NOMINAL MM
coaming_height	6.000 INCHES NOMINAL IN
load_direction	RADIAL
opening_length	24.000 INCHES NOMINAL IN
surface_finish	GROUND
style_designator	NON-LOADING GROOVE, NON-SEPARABLE
coaming_thickness	0.125 INCHES NOMINAL IN
NSN	3110-00-144-8962

COMPONENT DIAGRAM

KEY FEATURES

•

INTERNAL CLEARANCE: 0.0006 INCHES MINIMUM RADIAL AND 0.0016 INCHES MAXIMUM RADIAL IN

•

SURFACE FINISH: GROUND

•

STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE

•

OVERALL OUTSIDE DIAMETER: 215.0 MILLIMETERS NOMINAL MM

•

BORE SHAPE: STRAIGHT

•

NONDEFINITIVE SPEC/STD DATA: 111CL1GR00 TYPE

•

LOAD DIRECTION: RADIAL

TECHNICAL CHARACTERISTICS

INTERNAL CLEARANCE	0.0006 INCHES MINIMUM RADIAL AND 0.0016 INCHES MAXIMUM RADIAL IN
SURFACE FINISH	GROUND
STYLE DESIGNATOR	NON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH	40.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER	215.0 MILLIMETERS NOMINAL MM
BORE SHAPE	STRAIGHT
NONDEFINITIVE SPEC/STD DATA	111CL1GR00 TYPE
LOAD DIRECTION	RADIAL
STANDARD TOLERANCE DESIGNATION	ABEC NO.1
BORE DIAMETER	120.0 MILLIMETERS NOMINAL MM

SUBSTITUTES & CROSS-REFERENCES 8

6224Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

C224Reference document

Same NSN cross-reference

Reference document — Secondary reference

3224Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

224KSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

FF-B-171Reference document

Same NSN cross-reference

Reference document — Identification reference

894A605-023Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is BM21-8?

BM21-8 is a TRANSFORMER,AUDIO FREQUENCY.

What parts can replace BM21-8?

There are 8 known substitutes for BM21-8: 6224, C224, 3224 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for BM21-8?

BM21-8 is cataloged in the U.S. Government catalog under NSN 3110-00-144-8962. This indicates validated use in U.S. government and defense supply chains.

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