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665787 — CYLINDER,ACTUATING,LINEAR

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

665787: CYLINDER,ACTUATING,LINEAR.

The CYLINDER,ACTUATING,LINEAR is a the manufacturer industrial component. Key specifications include material: STEEL BODY, bore_diameter: 4.250 INCHES MINIMUM AND 4.253 INCHES MAXIMUM IN, overall_length: 81.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-362-3057, 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
665787
NSN: 3120-00-362-3057
NIINs: 003623057, 013537576
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 93334 — ATWOOD FENCE CO INC (USA)
SPECIFICATIONS
materialSTEEL BODY
bore_diameter4.250 INCHES MINIMUM AND 4.253 INCHES MAXIMUM IN
overall_length81.500 INCHES NOMINAL IN
NSN3120-00-362-3057
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 665787 · 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
•
BODY OUTSIDE DIAMETER: 2.0712 INCHES MINIMUM AND 2.0717 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 1.9415 INCHES MINIMUM AND 1.9425 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
CORNER SHAPECHAMFERED OUTSIDE LEFT CORNER
CORNER SHAPECHAMFERED OUTSIDE RIGHT CORNER
BODY OUTSIDE DIAMETER2.0712 INCHES MINIMUM AND 2.0717 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.0625 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.9415 INCHES MINIMUM AND 1.9425 INCHES MAXIMUM IN
SPECIAL FEATURES0.7188 IN. RADIUS NOTCH 0.0625 IN. DEEP IN EACH END IN
ANTIROTATION/LUBRICATION TYPE AND QUANTITY2 HOLE
SUBSTITUTES & CROSS-REFERENCES 2
665685Reference document
Same NSN cross-reference
Reference document — Secondary reference
7703887Reference document
Same NSN cross-reference
Reference document — Secondary 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 665787?
665787 is a CYLINDER,ACTUATING,LINEAR.
What parts can replace 665787?
There are 2 known substitutes for 665787: 665685, 7703887. Substitute compatibility should be verified for your specific system.
What is the NSN for 665787?
665787 is cataloged in the U.S. Government catalog under NSN 3120-00-362-3057. 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.