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128CSM10669-1 — LEAF,BUTT HINGE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

128CSM10669-1: LEAF,BUTT HINGE.

The LEAF,BUTT HINGE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, knuckle_length: 0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN, overall_length: 2.500 INCHES NOMINAL IN, performance_type: NOT RATED, material_thickness: 0.100 INCHES NOMINAL IN, pin_center_to_body_edge_distance: 1.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-970-9741, 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
128CSM10669-1
NSN: 5340-00-970-9741
FSC: 5340 — Hardware, Commercial
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
knuckle_length0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
overall_length2.500 INCHES NOMINAL IN
knuckle_quantity3
performance_typeNOT RATED
material_thickness0.100 INCHES NOMINAL IN
mounting_hole_quantity1
pin_center_to_body_edge_distance1.500 INCHES NOMINAL IN
NSN5340-00-970-9741
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 128CSM10669-1 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: 1
•
PIN CENTER TO BODY EDGE DISTANCE: 1.500 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.100 INCHES NOMINAL IN
•
KNUCKLE QUANTITY: 3
•
KNUCKLE LENGTH: 0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
PERFORMANCE TYPE: NOT RATED
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY1
OVERALL LENGTH2.500 INCHES NOMINAL IN
PIN CENTER TO BODY EDGE DISTANCE1.500 INCHES NOMINAL IN
MATERIAL THICKNESS0.100 INCHES NOMINAL IN
KNUCKLE QUANTITY3
KNUCKLE LENGTH0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY OVERALL
PERFORMANCE TYPENOT RATED
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

No substitute or cross-reference records for this part.

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 128CSM10669-1?
128CSM10669-1 is a LEAF,BUTT HINGE.
What is the NSN for 128CSM10669-1?
128CSM10669-1 is cataloged in the U.S. Government catalog under NSN 5340-00-970-9741. 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.