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M2619 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

M2619: 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 material: STEEL OVERALL, cup_width: 1.1250 INCHES NOMINAL IN, cone_width: 1.4375 INCHES NOMINAL IN, bore_diameter: 1.7500 INCHES NOMINAL IN, overall_width: 1.4375 INCHES NOMINAL IN, standout_width: 0.3125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-199-6573, 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
M2619
NSN: 5310-00-199-6573
NIINs: 001996573, 002939083
FSC: 5310 — Nuts and Washers
CAGE: 14180 — LULL CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width1.1250 INCHES NOMINAL IN
cone_width1.4375 INCHES NOMINAL IN
bore_diameter1.7500 INCHES NOMINAL IN
overall_width1.4375 INCHES NOMINAL IN
standout_width0.3125 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.1250 INCHES NOMINAL IN
backface_corner_radius0.1400 INCHES NOMINAL IN
overall_outside_diameter4.1250 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA CLASS 2
NSN5310-00-199-6573
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M2619 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.938 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
NUT HEIGHT: 0.750 INCHES NOMINAL IN
•
NUT STYLE: CAP
•
THREAD CLASS: 2B
•
THREAD QUANTITY PER INCH: 18
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
WIDTH ACROSS FLATS0.938 INCHES NOMINAL IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.625 INCHES IN
NUT HEIGHT0.750 INCHES NOMINAL IN
NUT STYLECAP
THREAD CLASS2B
THREAD QUANTITY PER INCH18
MATERIALCOPPER ALLOY OVERALL
BEARING SURFACE TYPEWASHER FACED
SUBSTITUTES & CROSS-REFERENCES 2
4CA480Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
5L1477Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
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 M2619?
M2619 is a BEARING,ROLLER,TAPERED.
What parts can replace M2619?
There are 2 known substitutes for M2619: 4CA480, 5L1477. Substitute compatibility should be verified for your specific system.
What is the NSN for M2619?
M2619 is cataloged in the U.S. Government catalog under NSN 5310-00-199-6573. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.