PartsTable
Technical Data Sheet
Download PDF

PN61901 — BEARING,WASHER,THRUST

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

PN61901: BEARING,WASHER,THRUST.

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include outside_diameter: 3.855 INCHES MINIMUM AND 3.895 INCHES MAXIMUM IN, special_features: 2 3/4 X 3 7/8 OR 2.750 X 3.875 NOMINAL SIZE; INSIDE DIAMETER 2.781 2.751, OUTSIDE DIAMETER 3.895 3.855, overall_thickness: 0.250 INCHES NOMINAL IN, type/model_designation: TT-3800, end_item_identification: QUEEN ELIZABETH CLASS AIRCRAFT CARRIERS, part_name_assigned_by_controlling_agency: THRUST BEARING. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-666-5495, 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
PN61901
NSN: 3120-01-666-5495
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: K1953 — BABCOCK INTERNATIONAL GROUP PLC (GBR)
SPECIFICATIONS
outside_diameter3.855 INCHES MINIMUM AND 3.895 INCHES MAXIMUM IN
special_features2 3/4 X 3 7/8 OR 2.750 X 3.875 NOMINAL SIZE; INSIDE DIAMETER 2.781 2.751, OUTSIDE DIAMETER 3.895 3.855
overall_thickness0.250 INCHES NOMINAL IN
type/model_designationTT-3800
end_item_identificationQUEEN ELIZABETH CLASS AIRCRAFT CARRIERS
part_name_assigned_by_controlling_agencyTHRUST BEARING
NSN3120-01-666-5495
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: PN61901 · 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
•
OVERALL THICKNESS: 0.250 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.855 INCHES MINIMUM AND 3.895 INCHES MAXIMUM IN
•
TYPE/MODEL DESIGNATION: TT-3800
TECHNICAL CHARACTERISTICS
OVERALL THICKNESS0.250 INCHES NOMINAL IN
OUTSIDE DIAMETER3.855 INCHES MINIMUM AND 3.895 INCHES MAXIMUM IN
SPECIAL FEATURES2 3/4 X 3 7/8 OR 2.750 X 3.875 NOMINAL SIZE; INSIDE DIAMETER 2.781 2.751, OUTSIDE DIAMETER 3.895 3.855
PART NAME ASSIGNED BY CONTROLLING AGENCYTHRUST BEARING
END ITEM IDENTIFICATIONQUEEN ELIZABETH CLASS AIRCRAFT CARRIERS
TYPE/MODEL DESIGNATIONTT-3800
SUBSTITUTES & CROSS-REFERENCES 2
40076983Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
TB-3800Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy PN61901?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is PN61901?
PN61901 is a BEARING,WASHER,THRUST.
What parts can replace PN61901?
There are 2 known substitutes for PN61901: 40076983, TB-3800. Substitute compatibility should be verified for your specific system.
What is the NSN for PN61901?
PN61901 is cataloged in the U.S. Government catalog under NSN 3120-01-666-5495. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — PN61901