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PartsTable / COMPONENT / MS27966-8
MS27966-8 ✓ 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 HINGE,BUTT is a the manufacturer industrial component. Key specifications include body_width: 2.440 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN, knuckle_type: FRICTION, pin_removability: NONREMOVABLE, style_designator: BUTT, material_thickness: 0.079 INCHES NOMINAL IN, reversible_feature: NOT INCLUDED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-050-3014, 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
MS27966-8
NSN: 5340-00-050-3014
FSC: 5340
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
body_width2.440 INCHES MINIMUM AND 2.560 INCHES MAXIMUM IN
knuckle_typeFRICTION
knuckle_quantity5
pin_removabilityNONREMOVABLE
style_designatorBUTT
material_thickness0.079 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
hinge_mounting_typeFULL SURFACE
mounting_hole_diameter0.157 INCHES NOMINAL IN
mounting_hole_quantity6
pin_center_to_body_edge_distance0.937 INCHES NOMINAL IN
material_document_and_classificationUNABLE TO DECODE
NSN5340-00-050-3014
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS27966-8 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
•
MOUNTING HOLE QUANTITY: 6
•
PIN CENTER TO BODY EDGE DISTANCE: 0.937 INCHES NOMINAL IN
•
HINGE MOUNTING TYPE: FULL SURFACE
•
PIN REMOVABILITY: NONREMOVABLE
•
STYLE DESIGNATOR: BUTT
•
KNUCKLE TYPE: FRICTION
•
KNUCKLE QUANTITY: 5
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING HOLE QUANTITY6
PIN CENTER TO BODY EDGE DISTANCE0.937 INCHES NOMINAL IN
HINGE MOUNTING TYPEFULL SURFACE
PIN REMOVABILITYNONREMOVABLE
STYLE DESIGNATORBUTT
KNUCKLE TYPEFRICTION
KNUCKLE QUANTITY5
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
REVERSIBLE FEATURENOT INCLUDED
MOUNTING HOLE DIAMETER0.157 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MS27966-10Interchangeable
interchangeable cross-reference
interchangeable
AA55586-10Interchangeable
interchangeable cross-reference
interchangeable
MS27966-4Interchangeable
interchangeable cross-reference
interchangeable
AA55586-4Interchangeable
interchangeable cross-reference
interchangeable
800Interchangeable
interchangeable cross-reference
interchangeable
A-A-55586Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS27966-8?
MS27966-8 is a HINGE,BUTT.
What parts can replace MS27966-8?
There are 7 known substitutes for MS27966-8: MS27966-10, AA55586-10, MS27966-4 and 4 more. Substitute compatibility should be verified for your specific system.
Is MS27966-8 still available?
MS27966-8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026