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SWKN-40-012 — BEARING,PLAIN,SELF-ALIGNING

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

SWKN-40-012: BEARING,PLAIN,SELF-ALIGNING.

The BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 INNER MEMBER, bore_diameter: 2.4990 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN, style_designator: WITH INSERT AND/OR LINER, surface_treatment: OXIDE FILM AND ANODIZE OUTER RACE MEMBER, inner_member_width: 0.9980 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN, outer_member_width: 0.8000 INCHES MINIMUM AND 0.8050 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-048-7927, 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
SWKN-40-012
NSN: 3120-01-048-7927
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 81376 — RBC SOUTHWEST PRODUCTS, INC. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 INNER MEMBER
bore_diameter2.4990 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN
style_designatorWITH INSERT AND/OR LINER
surface_treatmentOXIDE FILM AND ANODIZE OUTER RACE MEMBER
inner_member_width0.9980 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
outer_member_width0.8000 INCHES MINIMUM AND 0.8050 INCHES MAXIMUM IN
static_radial_load_rating67000 POUNDS LBS
outer_member_outside_diameter3.2490 INCHES MINIMUM AND 3.2500 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE INNER MEMBER
surface_treatment_document_and_classificationMIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-A-8625,T1,T2 MIL SPEC 2ND TREATMENT RESPONSE INSIDE DIAMETER SURFACE OF BODY
NSN3120-01-048-7927
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: SWKN-40-012 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,T3 MIL SPEC SINGLE TREATMENT RESPONSE INNER MEMBER
•
INNER MEMBER WIDTH: 0.9980 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
•
OUTER MEMBER WIDTH: 0.8000 INCHES MINIMUM AND 0.8050 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: WITH INSERT AND/OR LINER
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE INNER MEMBER
•
SURFACE TREATMENT: ANODIZE INNER MEMBER
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,T3 MIL SPEC SINGLE TREATMENT RESPONSE INNER MEMBER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-A-8625,T1,T2 MIL SPEC 2ND TREATMENT RESPONSE INSIDE DIAMETER SURFACE OF BODY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-A-8625,T1,T2 MIL SPEC 2ND TREATMENT RESPONSE OUTER RACE MEMBER
INNER MEMBER WIDTH0.9980 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
OUTER MEMBER WIDTH0.8000 INCHES MINIMUM AND 0.8050 INCHES MAXIMUM IN
STYLE DESIGNATORWITH INSERT AND/OR LINER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE INNER MEMBER
SURFACE TREATMENTANODIZE INNER MEMBER
SURFACE TREATMENTOXIDE FILM AND ANODIZE INSIDE DIAMETER SURFACE OF BODY
SURFACE TREATMENTOXIDE FILM AND ANODIZE OUTER RACE MEMBER
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES 3
C7546-2Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
3120PL1622916Reference document
Same NSN cross-reference
Reference document — Informative reference only
3120PL0685286Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 SWKN-40-012?
SWKN-40-012 is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace SWKN-40-012?
There are 3 known substitutes for SWKN-40-012: C7546-2, 3120PL1622916, 3120PL0685286. Substitute compatibility should be verified for your specific system.
What is the NSN for SWKN-40-012?
SWKN-40-012 is cataloged in the U.S. Government catalog under NSN 3120-01-048-7927. 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.