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STYLE 3739 — BUCKLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

STYLE 3739: BUCKLE.

The BUCKLE is a the manufacturer industrial component. Key specifications include insignia: NOT INCLUDED, material: STEEL OVERALL, overall_width: 0.750 INCHES NOMINAL IN, enameled_feature: NOT INCLUDED, special_features: SURFACE TREATMENT: ZINC ALLOY, surface_treatment: ZINC. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-310-4864, 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
STYLE 3739
NSN: 5340-01-310-4864
FSC: 5340 — Hardware, Commercial
CAGE: 70470 — TRIVANTAGE, LLC DBA GLEN RAVEN TECHNICAL FABRICS LLC (USA)
SPECIFICATIONS
insigniaNOT INCLUDED
materialSTEEL OVERALL
overall_width0.750 INCHES NOMINAL IN
enameled_featureNOT INCLUDED
special_featuresSURFACE TREATMENT: ZINC ALLOY
surface_treatmentZINC
specific_usage_designTIE DOWN
buckle_style_designatorDOUBLE BAR-TONGUELESS
NSN5340-01-310-4864
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: STYLE 3739 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
•
BUCKLE STYLE DESIGNATOR: DOUBLE BAR-TONGUELESS
•
INSIGNIA: NOT INCLUDED
•
SURFACE TREATMENT: ZINC
•
SPECIFIC USAGE DESIGN: TIE DOWN
•
MATERIAL: STEEL OVERALL
•
ENAMELED FEATURE: NOT INCLUDED
TECHNICAL CHARACTERISTICS
BUCKLE STYLE DESIGNATORDOUBLE BAR-TONGUELESS
OVERALL WIDTH0.750 INCHES NOMINAL IN
INSIGNIANOT INCLUDED
SPECIAL FEATURESSURFACE TREATMENT: ZINC ALLOY
SURFACE TREATMENTZINC
SPECIFIC USAGE DESIGNTIE DOWN
MATERIALSTEEL OVERALL
ENAMELED FEATURENOT INCLUDED
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 2
8720152Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
207526-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 STYLE 3739?
STYLE 3739 is a BUCKLE.
What parts can replace STYLE 3739?
There are 2 known substitutes for STYLE 3739: 8720152, 207526-4. Substitute compatibility should be verified for your specific system.
What is the NSN for STYLE 3739?
STYLE 3739 is cataloged in the U.S. Government catalog under NSN 5340-01-310-4864. 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.