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1900-6550 — TURNBUCKLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1900-6550: TURNBUCKLE.

The TURNBUCKLE is a the manufacturer industrial component. Key specifications include length: 33.250 INCHES NOMINAL IN, material: STEEL OVERALL, eye_width: 2.750 INCHES NOMINAL IN, take-up_distance: 16.000 INCHES NOMINAL IN, locking_device_type: CLIP, end_item_identification: TRAILER,SEMI. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-626-5166, 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
1900-6550
NSN: 5340-01-626-5166
FSC: 5340 — Hardware, Commercial
CAGE: 0NXJ2 — MAZZELLA LIFTING TECHNOLOGIES, INC. DBA MAZZELLA JOHN SAKACHO CO (USA)
SPECIFICATIONS
length33.250 INCHES NOMINAL IN
materialSTEEL OVERALL
eye_width2.750 INCHES NOMINAL IN
take-up_distance16.000 INCHES NOMINAL IN
locking_device_typeCLIP
end_item_identificationTRAILER,SEMI
part_name_assigned_by_controlling_agencyBINDER,LOAD
NSN5340-01-626-5166
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1900-6550 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
•
TAKE-UP DISTANCE: 16.000 INCHES NOMINAL IN
•
EYE WIDTH: 2.750 INCHES NOMINAL IN
•
LENGTH: 33.250 INCHES NOMINAL IN
•
LOCKING DEVICE TYPE: CLIP
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
TAKE-UP DISTANCE16.000 INCHES NOMINAL IN
EYE WIDTH2.750 INCHES NOMINAL IN
LENGTH33.250 INCHES NOMINAL IN
LOCKING DEVICE TYPECLIP
PART NAME ASSIGNED BY CONTROLLING AGENCYBINDER,LOAD
END ITEM IDENTIFICATIONTRAILER,SEMI
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
SW37111-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 1900-6550?
1900-6550 is a TURNBUCKLE.
What parts can replace 1900-6550?
There is 1 known substitute for 1900-6550: SW37111-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 1900-6550?
1900-6550 is cataloged in the U.S. Government catalog under NSN 5340-01-626-5166. 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.