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277787R1 — FILTER ELEMENT,FLUID

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

277787R1: FILTER ELEMENT,FLUID.

The FILTER ELEMENT,FLUID is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 1.6250 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 3.0000 INCHES NOMINAL IN, body_outside_diameter: 3.1870 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-716-1756, 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
277787R1
NSN: 3120-00-716-1756
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 31007 — NAVISTAR INTERNATIONAL CORPORATION DBA NAVISTAR (USA)
SPECIFICATIONS
materialSTEEL OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length1.6250 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter3.0000 INCHES NOMINAL IN
body_outside_diameter3.1870 INCHES NOMINAL IN
NSN3120-00-716-1756
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 277787R1 · 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 ALL CORNERS
•
BODY OUTSIDE DIAMETER: 3.1870 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 3.0000 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER3.1870 INCHES NOMINAL IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.6250 INCHES NOMINAL IN
BODY INSIDE DIAMETER3.0000 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
125-3040Reference 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 277787R1?
277787R1 is a FILTER ELEMENT,FLUID.
What parts can replace 277787R1?
There is 1 known substitute for 277787R1: 125-3040. Substitute compatibility should be verified for your specific system.
What is the NSN for 277787R1?
277787R1 is cataloged in the U.S. Government catalog under NSN 3120-00-716-1756. 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.