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2999T53 — TURNBUCKLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2999T53: TURNBUCKLE.

The TURNBUCKLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: CLOSED EYE AND CLOSED EYE, body_style: ROUND OPEN BODY, take-up_distance: 6.000 INCHES NOMINAL IN, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-275-3484, 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
2999T53
NSN: 5340-01-275-3484
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleCLOSED EYE AND CLOSED EYE
body_styleROUND OPEN BODY
take-up_distance6.000 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
NSN5340-01-275-3484
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2999T53 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: 6.000 INCHES NOMINAL IN
•
BODY STYLE: ROUND OPEN BODY
•
END STYLE: CLOSED EYE AND CLOSED EYE
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
TAKE-UP DISTANCE6.000 INCHES NOMINAL IN
BODY STYLEROUND OPEN BODY
END STYLECLOSED EYE AND CLOSED EYE
SURFACE TREATMENTZINC 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

No substitute or cross-reference records for this part.

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 2999T53?
2999T53 is a TURNBUCKLE.
What is the NSN for 2999T53?
2999T53 is cataloged in the U.S. Government catalog under NSN 5340-01-275-3484. 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.