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AS81820 — BEARING,PLAIN,SELF-ALIGNING

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

AS81820: BEARING,PLAIN,SELF-ALIGNING.

The BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE RACE LINER, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, special_features: ***RESTRICTED USAGE FOR REPAIR WORK ONLY,.010 INCH OVERSIZE OUTSIDE DIAMETER FOR REPLACEMENT OF BEARING*** IN, style_designator: WITH INSERT AND/OR LINER WITH STAKING GROOVE, inner_member_width: 0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN, outer_member_width: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-332-4378, 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
AS81820
NSN: 3120-00-332-4378
NIINs: 003324378, 005285336, 010069147, 010069148, 010069514, 010069516, 010158846, 010169661, 010244919, 010274727, 010274728, 010274729, 010332773, 010404863, 010416462, 010417129, 010505055, 010646301, 010833268, 010849242, 010997316, 011010810, 011045989, 011083831, 011296979, 011363573, 011539601, 012674207, 012693274, 013084861, 013202026, 013309912, 013381050, 013580628, 013598940, 013650579, 013868532, 014064649, 014951840, 015155161, 015156911, 016020727, 016854605
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE RACE LINER
bore_diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
special_features***RESTRICTED USAGE FOR REPAIR WORK ONLY,.010 INCH OVERSIZE OUTSIDE DIAMETER FOR REPLACEMENT OF BEARING*** IN
style_designatorWITH INSERT AND/OR LINER WITH STAKING GROOVE
inner_member_width0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
outer_member_width0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
end_item_identificationF-22 RAPTOR AIRCRAFT
outer_member_outside_diameter0.6657 INCHES MINIMUM AND 0.6662 INCHES MAXIMUM IN
part_name_assigned_by_controlling_agencyBEARING,PLAIN,SELF-LUBRICATING,SELF-ALIGNING,LOW SPEED,NARROW,GROOVED RACE,-65 TO +325 DEG F DEGF
NSN3120-00-332-4378
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: AS81820 · 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
•
INNER MEMBER WIDTH: 0.8730 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
•
HARDNESS RATING: 55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
•
OUTER MEMBER WIDTH: 0.7500 INCHES MINIMUM AND 0.7600 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: WITH INSERT AND/OR LINER
•
STATIC RADIAL LOAD RATING: 67300 POUNDS LBS
•
BORE DIAMETER: 0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE RACE LINER
TECHNICAL CHARACTERISTICS
INNER MEMBER WIDTH0.8730 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM INNER MEMBER
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
OUTER MEMBER WIDTH0.7500 INCHES MINIMUM AND 0.7600 INCHES MAXIMUM IN
STYLE DESIGNATORWITH INSERT AND/OR LINER
STATIC RADIAL LOAD RATING67300 POUNDS LBS
BORE DIAMETER0.8745 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE RACE LINER
MATERIALSTEEL COMP 440C INNER MEMBER
MATERIALSTEEL COMP 630 OUTER RACE MEMBER
SUBSTITUTES & CROSS-REFERENCES 5
MS14103-14Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS14103-14Reference document
Same NSN cross-reference
Reference document — Secondary reference
KR14-CWGBReference document
Same NSN cross-reference
Reference document — Secondary reference
AS81820/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-B-81820Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS81820?
AS81820 is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace AS81820?
There are 5 known substitutes for AS81820: MS14103-14, AS14103-14, KR14-CWGB and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS81820?
AS81820 is cataloged in the U.S. Government catalog under NSN 3120-00-332-4378. This indicates validated use in U.S. government and defense supply chains.
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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.