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ST-4A — RESISTOR,VARIABLE,NONWIRE WOUND,

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

ST-4A: RESISTOR,VARIABLE,NONWIRE WOUND,.

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: STEEL ROLLER, body_style: TRIMMER, body_width: 4.500 INCHES NOMINAL IN, body_height: 2.000 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN, body_length: 5.000 INCHES NOMINAL IN, shank_style: EXTERNALLY THREADED. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-294-3736, 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
MRO→ MRO_GENERAL→ ST-4A
NSN: 3110-00-294-3736
NIINs: 002943736, 014631177
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 0NCD7 — SABRELINER CORP (USA)
SPECIFICATIONS
materialSTEEL ROLLER
body_styleTRIMMER
body_width4.500 INCHES NOMINAL IN
body_height2.000 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
body_length5.000 INCHES NOMINAL IN
shank_styleEXTERNALLY THREADED
thread_class3A A
actuator_typeINTEGRAL KNOB
bore_diameter0.2500 INCHES NOMINAL IN
seal_quantity2
alignment_typeSELF-ALIGNING
overall_length2.3900 INCHES NOMINAL IN
NSN3110-00-294-3736
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: ST-4A · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHANK DIAMETER: 0.3750 INCHES NOMINAL IN
•
SHANK THREAD LENGTH: 1.0600 INCHES NOMINAL IN
•
BEARING SEAL TYPE: CONTACT
•
LUBRICATION MATERIAL: GREASE
•
OUTER RING WIDTH: 0.3600 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE ROW, CONCAVE ROLLERS
•
OVERALL OUTSIDE DIAMETER: 1.0200 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.3750 INCHES NOMINAL IN
SHANK THREAD LENGTH1.0600 INCHES NOMINAL IN
BEARING SEAL TYPECONTACT
LUBRICATION MATERIALGREASE
OUTER RING WIDTH0.3600 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE ROW, CONCAVE ROLLERS
OVERALL LENGTH2.3900 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER1.0200 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 2
ST4AHReference document
Same NSN cross-reference
Reference document — Secondary reference
SM4-6N-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST-4A?
ST-4A is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace ST-4A?
There are 2 known substitutes for ST-4A: ST4AH, SM4-6N-4. Substitute compatibility should be verified for your specific system.
What is the NSN for ST-4A?
ST-4A is cataloged in the U.S. Government catalog under NSN 3110-00-294-3736. 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.