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A-A-55593 — HINGE,BUTT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A-A-55593: HINGE,BUTT.

The HINGE,BUTT is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, rising_pin: NOT INCLUDED, knuckle_type: FRICTION, pin_diameter: 0.1850 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN, overall_length: 83.9700 INCHES MINIMUM AND 84.0300 INCHES MAXIMUM IN, knuckle_quantity: 42. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-239-0505, 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-55593
NSN: 5340-00-239-0505
NIINs: 002390505, 010496334, 010546092, 010546093, 010546094, 010548654, 010923857, 011088756, 012761785, 013678147, 014417498, 014464239, 014532928
FSC: 5340 — Hardware, Commercial
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
rising_pinNOT INCLUDED
knuckle_typeFRICTION
pin_diameter0.1850 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM IN
overall_length83.9700 INCHES MINIMUM AND 84.0300 INCHES MAXIMUM IN
knuckle_quantity42
performance_typeNOT RATED
pin_removabilityREMOVABLE
style_designatorBUTT
material_thickness0.0550 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
reversible_featureINCLUDED
pin_center_to_body_edge_distance0.9780 INCHES MINIMUM AND 1.0310 INCHES MAXIMUM IN
NSN5340-00-239-0505
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A-A-55593 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
SUBSTITUTES & CROSS-REFERENCES 3
MS35826-1CReference document
Same NSN cross-reference
Reference document — Secondary reference
MS35826-9CReference document
Same NSN cross-reference
Reference document — Secondary reference
AA55593-9CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A-A-55593?
A-A-55593 is a HINGE,BUTT.
What parts can replace A-A-55593?
There are 3 known substitutes for A-A-55593: MS35826-1C, MS35826-9C, AA55593-9C. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-55593?
A-A-55593 is cataloged in the U.S. Government catalog under NSN 5340-00-239-0505. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.