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Technical Data Sheet
A-A-55596 ✓ 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 material: UNABLE TO DECODE, knuckle_type: FRICTION, pin_diameter: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN, overall_length: 83.970 INCHES MINIMUM AND 84.030 INCHES MAXIMUM IN, knuckle_quantity: 42, performance_type: NOT RATED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-062-9974, 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
A-A-55596
NSN: 5340-00-062-9974
FSC: 5340
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
knuckle_typeFRICTION
pin_diameter0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
overall_length83.970 INCHES MINIMUM AND 84.030 INCHES MAXIMUM IN
knuckle_quantity42
performance_typeNOT RATED
pin_removabilityNONREMOVABLE
style_designatorBUTT
material_thickness0.117 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
reversible_featureNOT INCLUDED
hinge_mounting_typeFULL SURFACE
pin_center_to_body_edge_distance1.969 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN
NSN5340-00-062-9974
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A-A-55596 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
503071Upgraded Successor
successor cross-reference
successor
A-A-55587Upgraded Successor
successor cross-reference
successor
AA55587-6Upgraded Successor
successor cross-reference
successor
MS27968-6Upgraded Successor
successor cross-reference
successor
MS27968-2Upgraded Successor
successor cross-reference
successor
AA55587-2Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-55596?
A-A-55596 is a HINGE,BUTT.
What parts can replace A-A-55596?
There are 21 known substitutes for A-A-55596: 503071, A-A-55587, AA55587-6 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-55596?
A-A-55596 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-062-9974. This indicates validated use in U.S. government and defense supply chains.
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