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PartsTable / COMPONENT / A111-20
A111-20 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 0.154 INCHES NOMINAL IN, length: 0.312 INCHES NOMINAL IN, material: GRAPHITE, thickness: 0.154 INCHES NOMINAL IN, top_style: FLAT, body_style: RECTANGULAR COMMUTATOR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-127-6120, 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
A111-20
NSN: 5330-00-127-6120
FSC: 5330
CAGE: 45681 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV CORPORATE HEADQUARTERS (USA)
SPECIFICATIONS
width0.154 INCHES NOMINAL IN
length0.312 INCHES NOMINAL IN
materialGRAPHITE
thickness0.154 INCHES NOMINAL IN
top_styleFLAT
body_styleRECTANGULAR COMMUTATOR
inside_diameter4.500 INCHES NOMINAL IN
special_featuresOCP WITH BAGBY GREEN 67204 AND BLACK 67138
style_designatorONE PIECE
attachment_methodHOOK FASTENER
features_providedEMBROIDERED
contact_face_styleCONCAVE
NSN5330-00-127-6120
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A111-20 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INSIDE DIAMETER: 4.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESBLACK,COATED WITH MOLY
INSIDE DIAMETER4.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
A11-120Interchangeable
interchangeable cross-reference
interchangeable
56170Interchangeable
interchangeable cross-reference
interchangeable
B11-120CHANGE1Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652BInterchangeable
interchangeable cross-reference
interchangeable
0814630432Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A111-20?
A111-20 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace A111-20?
There are 5 known substitutes for A111-20: A11-120, 56170, B11-120CHANGE1 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A111-20?
A111-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-127-6120. 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: July 2026