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Technical Data Sheet
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SM-1-1125A — Technical Data Sheet

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— · 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

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include material: ALUMINUM AND WOOD, body_style: CYLINDRICAL BUSHING MOUNTED, cone_width: 0.7813 INCHES NOMINAL IN, seal_width: 0.157 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN, body_length: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN, shaft_style: ROUND, SLOTTED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3130-01-197-9371, 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
SM-1-1125A
NSN: 3130-01-197-9371
FSC: 3130
CAGE: 62762 — PRJ EQUIPMENT CO (USA)
SPECIFICATIONS
materialALUMINUM AND WOOD
body_styleCYLINDRICAL BUSHING MOUNTED
cone_width0.7813 INCHES NOMINAL IN
seal_width0.157 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN
body_length0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
shaft_styleROUND, SLOTTED
temp_rating-70.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
bearing_typeSLEEVE SHAFT
constructionSOLID
shaft_length0.781 INCHES MINIMUM AND 0.843 INCHES MAXIMUM IN
actuator_typeSINGLE SHAFT
body_diameter0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
NSN3130-01-197-9371
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: SM-1-1125A · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
83920HInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
252960InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
K12580InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
351-696InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
91356620InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3540S-1-103InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-1-1125A?
SM-1-1125A is a RESISTOR,VARIABLE,WIRE WOUND,NON.
What parts can replace SM-1-1125A?
There are 12 known substitutes for SM-1-1125A: 83920H, 252960, K12580 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-1-1125A?
SM-1-1125A is cataloged in the Federal Logistics Information System under NSN 3130-01-197-9371. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026