MS21154 — BEARING,PLAIN,SELF-ALIGNING

✓ Government record, cited

— · BALL BEARING

PRODUCT OVERVIEW

MS21154: BEARING,PLAIN,SELF-ALIGNING.

The BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include special_features: OUTER RACE MATERIAL: ALLOY STEEL; BORE DIAMETER: .3750 INCHES IN, end_item_identification: C17A AIRCRAFT. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-006-9146, 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

MS21154

NSN: 3120-01-006-9146
NIINs: 010069146, 010192500, 012044839, 012711008, 013488581, 013563229, 014555079
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

special_features	OUTER RACE MATERIAL: ALLOY STEEL; BORE DIAMETER: .3750 INCHES IN
end_item_identification	C17A AIRCRAFT
NSN	3120-01-006-9146

COMPONENT DIAGRAM

KEY FEATURES

•

INNER MEMBER WIDTH: 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN

•

OUTER MEMBER WIDTH: 0.5880 INCHES MINIMUM AND 0.5980 INCHES MAXIMUM IN

•

STYLE DESIGNATOR: WITHOUT INSERT OR LINER WITH STAKING GROOVE

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION

•

SURFACE TREATMENT: CADMIUM OUTER RACE MEMBER

•

STATIC RADIAL LOAD RATING: 28200 POUNDS LBS

•

BORE DIAMETER: 0.7492 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

INNER MEMBER WIDTH	0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
OUTER MEMBER WIDTH	0.5880 INCHES MINIMUM AND 0.5980 INCHES MAXIMUM IN
STYLE DESIGNATOR	WITHOUT INSERT OR LINER WITH STAKING GROOVE
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
SURFACE TREATMENT	CADMIUM OUTER RACE MEMBER
SURFACE TREATMENT	CHROMIUM INNER MEMBER
STATIC RADIAL LOAD RATING	28200 POUNDS LBS
BORE DIAMETER	0.7492 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
MATERIAL	COPPER ALLOY OUTER RACE MEMBER
MATERIAL	GREASE LUBRICATION

SUBSTITUTES & CROSS-REFERENCES 3

MS21154B12Reference document

Same NSN cross-reference

Reference document — Secondary reference

AS8976Reference document

Same NSN cross-reference

Reference document — Secondary reference

12-4200-12Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

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

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FREQUENTLY ASKED QUESTIONS

What is MS21154?

MS21154 is a BEARING,PLAIN,SELF-ALIGNING.

What parts can replace MS21154?

There are 3 known substitutes for MS21154: MS21154B12, AS8976, 12-4200-12. Substitute compatibility should be verified for your specific system.

What is the NSN for MS21154?

MS21154 is cataloged in the U.S. Government catalog under NSN 3120-01-006-9146. This indicates validated use in U.S. government and defense supply chains.

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MS21154 — BEARING,PLAIN,SELF-ALIGNING

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