PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 11731-1
11731-1 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL, end_similarity: NOT IDENTICAL, overall_length: 1.250 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES, first_end_style: PLAIN, second_end_style: EXTERNAL THREADED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-075-6326, 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
11731-1
NSN: 3120-00-075-6326
FSC: 3120
CAGE: 21439 — CURTISS-WRIGHT FLOW CONTROL SERVICE, LLC DBA ENGINEERED ARRESTING SYSTEMS - ESCO DIV CW FLOW CONTROL SVC LLC DBA (USA)
SPECIFICATIONS
materialSTEEL
step_quantity2
end_similarityNOT IDENTICAL
overall_length1.250 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES
first_end_stylePLAIN
second_end_styleEXTERNAL THREADED
first_end_diameter0.3100 INCHES NOMINAL IN
second_end_diameter0.2500 INCHES NOMINAL IN
fsc_application_dataGEARBOX ASSEMBLY WING FLAP ACFT
largest_step_diameter0.310 INCHES NOMINAL IN
second_end_external_thread_length0.500 INCHES NOMINAL IN
NSN3120-00-075-6326
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 11731-1 · 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
•
STYLE DESIGNATOR: SEGMENTED, PLAIN, NO OUTSIDE FLANGES
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSEGMENTED, PLAIN, NO OUTSIDE FLANGES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
1173-1Interchangeable
interchangeable cross-reference
interchangeable
182799Interchangeable
interchangeable cross-reference
interchangeable
8896K1Interchangeable
interchangeable cross-reference
interchangeable
SW1173-2Interchangeable
interchangeable cross-reference
interchangeable
415480H3CInterchangeable
interchangeable cross-reference
interchangeable
156232-DH3CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 11731-1?
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 11731-1?
11731-1 is a SHAFT,SHOULDERED.
What parts can replace 11731-1?
There are 18 known substitutes for 11731-1: 1173-1, 182799, 8896K1 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11731-1?
11731-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-075-6326. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 11731-1

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026