M17931-A021 — BEARING,BALL,DUPLEX

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

M17931-A021: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: GREASE LUBRICATION, bore_diameter: 2.1652 INCHES MINIMUM AND 2.1654 INCHES MAXIMUM IN, overall_width: 1.6335 INCHES MINIMUM AND 1.6535 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-976-9743, 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

M17931-A021

NSN: 3110-00-976-9743
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)

SPECIFICATIONS

material	GREASE LUBRICATION
bore_diameter	2.1652 INCHES MINIMUM AND 2.1654 INCHES MAXIMUM IN
overall_width	1.6335 INCHES MINIMUM AND 1.6535 INCHES MAXIMUM IN
load_direction	ANGULAR
surface_finish	GROUND
style_designator	COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
internal_fit-up_designation	STANDARD
nondefinitive_spec/std_data	134 TYPE AND 1 CLASS
retainer_fabrication_method	PRESSED
lubrication_material_document_and_classification	MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
NSN	3110-00-976-9743

COMPONENT DIAGRAM

KEY FEATURES

•

RETAINER FABRICATION METHOD: PRESSED

•

INTERNAL FIT-UP DESIGNATION: STANDARD

•

SURFACE FINISH: GROUND

•

STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING

•

NONDEFINITIVE SPEC/STD DATA: 134 TYPE AND 1 CLASS

•

LOAD DIRECTION: ANGULAR

•

BORE DIAMETER: 2.1652 INCHES MINIMUM AND 2.1654 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

RETAINER FABRICATION METHOD	PRESSED
INTERNAL FIT-UP DESIGNATION	STANDARD
SURFACE FINISH	GROUND
STYLE DESIGNATOR	COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
OVERALL WIDTH	1.6335 INCHES MINIMUM AND 1.6535 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA	134 TYPE AND 1 CLASS
LOAD DIRECTION	ANGULAR
BORE DIAMETER	2.1652 INCHES MINIMUM AND 2.1654 INCHES MAXIMUM IN
MATERIAL	STEEL OVERALL
MATERIAL	GREASE LUBRICATION

OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722

SUBSTITUTES & CROSS-REFERENCES 4

7211DBE8092CSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

MILB17931Reference document

Same NSN cross-reference

Reference document — Identification reference

79999016Reference document

Same NSN cross-reference

Reference document — Secondary reference

Q30211DTL7077Reference document

Same NSN cross-reference

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

LIFECYCLE

NSN statusActive· U.S. Government catalog

Shelf-life managedDemilitarization required — mutilation + specific procedure

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FREQUENTLY ASKED QUESTIONS

What is M17931-A021?

M17931-A021 is a BEARING,BALL,DUPLEX.

What parts can replace M17931-A021?

There are 4 known substitutes for M17931-A021: 7211DBE8092C, MILB17931, 79999016 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for M17931-A021?

M17931-A021 is cataloged in the U.S. Government catalog under NSN 3110-00-976-9743. This indicates validated use in U.S. government and defense supply chains.

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M17931-A021 — BEARING,BALL,DUPLEX

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