30-311A — BEARING,ROLLER,TAPERED

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

30-311A: BEARING,ROLLER,TAPERED.

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include features_provided: INDIVIDUALLY SEALED, part_name_assigned_by_controlling_agency: DISPENSER AND HEMOSTATIC SPONGES, 12 MM, EACH MM. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-057-9579, 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

30-311A

NSN: 3110-01-057-9579
NIINs: 010579579, 016655192
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 43991 — FAG BEARINGS CORPORATION (USA)

SPECIFICATIONS

features_provided	INDIVIDUALLY SEALED
part_name_assigned_by_controlling_agency	DISPENSER AND HEMOSTATIC SPONGES, 12 MM, EACH MM
NSN	3110-01-057-9579

COMPONENT DIAGRAM

KEY FEATURES

•

RETAINER FABRICATION METHOD: PRESSED

•

CUP WIDTH: 25.0 MILLIMETERS NOMINAL MM

•

STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE

•

OVERALL OUTSIDE DIAMETER: 120.0 MILLIMETERS NOMINAL MM

•

BACKFACE CORNER RADIUS: 2.0 MILLIMETERS NOMINAL MM

•

CONE CORNER RADIUS: 2.5 MILLIMETERS NOMINAL MM

•

STANDOUT WIDTH: 6.5 MILLIMETERS NOMINAL MM

TYPICAL APPLICATIONS

Long-term data archival and compliance retention
Offsite backup and disaster recovery
Air-gapped ransomware protection
Cold storage tier for infrequently accessed data

TECHNICAL CHARACTERISTICS

RETAINER FABRICATION METHOD	PRESSED
CUP WIDTH	25.0 MILLIMETERS NOMINAL MM
STYLE DESIGNATOR	STRAIGHT BORE, NORMAL ANGLE
OVERALL WIDTH	31.5 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER	120.0 MILLIMETERS NOMINAL MM
BACKFACE CORNER RADIUS	2.0 MILLIMETERS NOMINAL MM
CONE CORNER RADIUS	2.5 MILLIMETERS NOMINAL MM
STANDOUT WIDTH	6.5 MILLIMETERS NOMINAL MM
CONE WIDTH	29.0 MILLIMETERS NOMINAL MM
BORE DIAMETER	55.0 MILLIMETERS NOMINAL MM

SUBSTITUTES & CROSS-REFERENCES 5

30311-KA1Reference document

Same NSN cross-reference

Reference document — Secondary reference

30311-92KA1Reference document

Same NSN cross-reference

Reference document — Secondary reference

30311Reference document

Same NSN cross-reference

Reference document — Secondary reference

30311-9UKA1Reference document

Same NSN cross-reference

Reference document — Secondary reference

3110PL2042278Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 30-311A?

30-311A is a BEARING,ROLLER,TAPERED.

What parts can replace 30-311A?

There are 5 known substitutes for 30-311A: 30311-KA1, 30311-92KA1, 30311 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 30-311A?

30-311A is cataloged in the U.S. Government catalog under NSN 3110-01-057-9579. This indicates validated use in U.S. government and defense supply chains.

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