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353953-5 — LEAF,BUTT HINGE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

353953-5: LEAF,BUTT HINGE.

The LEAF,BUTT HINGE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hinge_pin: NOT INCLUDED, body_width: 28.750 INCHES NOMINAL IN, knuckle_type: BUSHING, performance_type: NOT RATED, style_designator: BUTT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-686-1595, 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
353953-5
NSN: 5340-00-686-1595
FSC: 5340 — Hardware, Commercial
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hinge_pinNOT INCLUDED
body_width28.750 INCHES NOMINAL IN
knuckle_typeBUSHING
knuckle_quantity6
performance_typeNOT RATED
style_designatorBUTT
surface_treatmentCHROMATE ZINC OVERALL
material_thickness0.040 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
pin_center_to_body_edge_distance0.870 INCHES NOMINAL IN
material_document_and_classificationLS 30842, LOCKHEED AIRCRAFT CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5340-00-686-1595
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 353953-5 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
•
REVERSIBLE FEATURE: NOT INCLUDED
•
BODY WIDTH: 28.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BUTT
•
MATERIAL DOCUMENT AND CLASSIFICATION: LS 30842, LOCKHEED AIRCRAFT CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
PIN CENTER TO BODY EDGE DISTANCE: 0.870 INCHES NOMINAL IN
•
HINGE PIN: NOT INCLUDED
•
MATERIAL THICKNESS: 0.040 INCHES NOMINAL IN
•
KNUCKLE QUANTITY: 6
TECHNICAL CHARACTERISTICS
REVERSIBLE FEATURENOT INCLUDED
BODY WIDTH28.750 INCHES NOMINAL IN
STYLE DESIGNATORBUTT
MATERIAL DOCUMENT AND CLASSIFICATIONLS 30842, LOCKHEED AIRCRAFT CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL
PIN CENTER TO BODY EDGE DISTANCE0.870 INCHES NOMINAL IN
HINGE PINNOT INCLUDED
MATERIAL THICKNESS0.040 INCHES NOMINAL IN
KNUCKLE QUANTITY6
SURFACE TREATMENTCHROMATE ZINC OVERALL
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
5340PL1243301Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 353953-5?
353953-5 is a LEAF,BUTT HINGE.
What parts can replace 353953-5?
There is 1 known substitute for 353953-5: 5340PL1243301. Substitute compatibility should be verified for your specific system.
What is the NSN for 353953-5?
353953-5 is cataloged in the U.S. Government catalog under NSN 5340-00-686-1595. 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.