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3709T31 — CONNECTING LINK,RIGID

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3709T31: CONNECTING LINK,RIGID.

The CONNECTING LINK,RIGID is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316, body_thickness: 0.125 INCHES NOMINAL IN, special_features: INSIDE LENGTH 1.187 INCHES. OPENING WIDTH 0.187 INCHES IN, body_construction: SOLID, part_name_assigned_by_controlling_agency: TRIANGLE-SHAPED THREADED CONNECTING LINK.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-698-2973, 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
3709T31
NSN: 5340-01-698-2973
FSC: 5340 — Hardware, Commercial
CAGE: 0KVE6 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL COMP 316
body_thickness0.125 INCHES NOMINAL IN
special_featuresINSIDE LENGTH 1.187 INCHES. OPENING WIDTH 0.187 INCHES IN
body_constructionSOLID
part_name_assigned_by_controlling_agencyTRIANGLE-SHAPED THREADED CONNECTING LINK
NSN5340-01-698-2973
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3709T31 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
•
BODY CONSTRUCTION: SOLID
•
MATERIAL: STEEL COMP 316
•
BODY THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BODY CONSTRUCTIONSOLID
SPECIAL FEATURESINSIDE LENGTH 1.187 INCHES. OPENING WIDTH 0.187 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYTRIANGLE-SHAPED THREADED CONNECTING LINK
MATERIALSTEEL COMP 316
BODY THICKNESS0.125 INCHES NOMINAL IN
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 3709T31?
3709T31 is a CONNECTING LINK,RIGID.
What is the NSN for 3709T31?
3709T31 is cataloged in the U.S. Government catalog under NSN 5340-01-698-2973. 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.