PartsTable
Technical Data Sheet

MIL-B-81936/1 — BEARING,PLAIN,SELF-ALIGNING

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

MIL-B-81936/1: BEARING,PLAIN,SELF-ALIGNING.

The BEARING,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: GREASE LUBRICATION, bore_diameter: 0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER, style_designator: WITHOUT INSERT OR LINER WITH STAKING GROOVE, inner_member_width: 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN, outer_member_width: 0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-030-4719, 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
MIL-B-81936/1
NSN: 3120-01-030-4719
NIINs: 010304719, 010382309, 010385444, 010388753, 010434382, 010434383, 011174265, 011292227, 011377130, 011914620
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialGREASE LUBRICATION
bore_diameter0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
style_designatorWITHOUT INSERT OR LINER WITH STAKING GROOVE
inner_member_width0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
outer_member_width0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
lubrication_featureGROOVE AND PERFORATION OUTER RACE MEMBER
static_radial_load_rating8460 POUNDS LBS
outer_member_outside_diameter0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
material_document_and_classificationQQ-C-530 FED SPEC ALL MATERIAL RESPONSES INNER MEMBER
NSN3120-01-030-4719
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MIL-B-81936/1 · 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
•
INNER MEMBER WIDTH: 0.4010 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN
•
OUTER MEMBER WIDTH: 0.3070 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: WITHOUT INSERT OR LINER WITH STAKING GROOVE
•
STATIC RADIAL LOAD RATING: 11400 POUNDS LBS
•
BORE DIAMETER: 0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
•
OUTER MEMBER OUTSIDE DIAMETER: 0.8120 INCHES MINIMUM AND 0.8125 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
INNER MEMBER WIDTH0.4010 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN
OUTER MEMBER WIDTH0.3070 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
STYLE DESIGNATORWITHOUT INSERT OR LINER WITH STAKING GROOVE
STATIC RADIAL LOAD RATING11400 POUNDS LBS
BORE DIAMETER0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
OUTER MEMBER OUTSIDE DIAMETER0.8120 INCHES MINIMUM AND 0.8125 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 8
AGB6VAReference document
Same NSN cross-reference
Reference document — Secondary reference
M81936/1-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
55842-06Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS81936/1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
KSB6-27GAReference document
Same NSN cross-reference
Reference document — Secondary reference
ST4M123G6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
Ready to buy MIL-B-81936/1?
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 MIL-B-81936/1?
MIL-B-81936/1 is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace MIL-B-81936/1?
There are 8 known substitutes for MIL-B-81936/1: AGB6VA, M81936/1-6, 55842-06 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-B-81936/1?
MIL-B-81936/1 is cataloged in the U.S. Government catalog under NSN 3120-01-030-4719. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MIL-B-81936/1

✓ 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.