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Technical Data Sheet
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258-4319 — ARMREST,VEHICULAR

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

258-4319: ARMREST,VEHICULAR.

The ARMREST,VEHICULAR is a the manufacturer industrial component. Key specifications include end_item_identification: 3805-01-550-0883; MULTI TERRAIN LOADER, part_name_assigned_by_controlling_agency: ARMREST ASSEMBLY,RIGHT HAND. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-410-6839, 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
258-4319
NSN: 3120-00-410-6839
NIINs: 004106839, 015651387
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
end_item_identification3805-01-550-0883; MULTI TERRAIN LOADER
part_name_assigned_by_controlling_agencyARMREST ASSEMBLY,RIGHT HAND
NSN3120-00-410-6839
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 258-4319 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
•
FLANGE OUTSIDE DIAMETER: 3.1250 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 2.6280 INCHES MINIMUM AND 2.6330 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPEROUND INSIDE LEFT CORNER
CORNER SHAPEROUND LEFT FLANGE BODY CORNER
FLANGE OUTSIDE DIAMETER3.1250 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.6280 INCHES MINIMUM AND 2.6330 INCHES MAXIMUM IN
HARDNESS RATING100.0 ROCKWELL M MINIMUM OVERALL
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
SUBSTITUTES & CROSS-REFERENCES 2
10387648Reference document
Same NSN cross-reference
Reference document — Informative reference only
15010646Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 258-4319?
258-4319 is a ARMREST,VEHICULAR.
What parts can replace 258-4319?
There are 2 known substitutes for 258-4319: 10387648, 15010646. Substitute compatibility should be verified for your specific system.
What is the NSN for 258-4319?
258-4319 is cataloged in the U.S. Government catalog under NSN 3120-00-410-6839. 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.