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026543 — TURNBUCKLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

026543: TURNBUCKLE.

The TURNBUCKLE is a the manufacturer industrial component. Key specifications include length: 21.875 INCHES NOMINAL IN, material: STEEL OVERALL, body_style: ROUND OPEN BODY, fork_width: 0.938 INCHES NOMINAL IN, body_length: 14.250 INCHES NOMINAL IN, thread_class: 1B BODY. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-080-0735, 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
026543
NSN: 5340-00-080-0735
FSC: 5340 — Hardware, Commercial
CAGE: 71747 — CHICAGO HARDWARE AND FIXTURE COMPANY (USA)
SPECIFICATIONS
length21.875 INCHES NOMINAL IN
materialSTEEL OVERALL
body_styleROUND OPEN BODY
fork_width0.938 INCHES NOMINAL IN
body_length14.250 INCHES NOMINAL IN
thread_class1B BODY
pinhole_diameter0.640 INCHES NOMINAL IN
take-up_distance12.000 INCHES NOMINAL IN
lug_hole_diameter1.500 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
nominal_thread_size0.750 INCHES BODY IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) BODY
NSN5340-00-080-0735
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 026543 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
•
LUG HOLE DIAMETER: 1.500 INCHES NOMINAL IN
•
TAKE-UP DISTANCE: 12.000 INCHES NOMINAL IN
•
LENGTH: 21.875 INCHES NOMINAL IN
•
BODY STYLE: ROUND OPEN BODY
•
NOMINAL THREAD SIZE: 0.750 INCHES BODY IN
•
BODY LENGTH: 14.250 INCHES NOMINAL IN
•
FORK WIDTH: 0.938 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS
LUG HOLE DIAMETER1.500 INCHES NOMINAL IN
TAKE-UP DISTANCE12.000 INCHES NOMINAL IN
LENGTH21.875 INCHES NOMINAL IN
BODY STYLEROUND OPEN BODY
NOMINAL THREAD SIZE0.750 INCHES BODY IN
BODY LENGTH14.250 INCHES NOMINAL IN
FORK WIDTH0.938 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
PINHOLE DIAMETER0.640 INCHES NOMINAL IN
THREAD CLASS1B BODY
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 3
015-4169-000Reference document
Same NSN cross-reference
Reference document — Secondary reference
2350-5900-112Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
G-227-3/4X12Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 026543?
026543 is a TURNBUCKLE.
What parts can replace 026543?
There are 3 known substitutes for 026543: 015-4169-000, 2350-5900-112, G-227-3/4X12. Substitute compatibility should be verified for your specific system.
What is the NSN for 026543?
026543 is cataloged in the U.S. Government catalog under NSN 5340-00-080-0735. This indicates validated use in U.S. government and defense supply chains.
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