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31-3691-1 — WIRING HARNESS,BRANCHED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

31-3691-1: WIRING HARNESS,BRANCHED.

The WIRING HARNESS,BRANCHED is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q OVERALL, hole_diameter: 0.098 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 3.900 INCHES NOMINAL IN, special_features: ITEM IS NUMBER 57 ON DRAWING ON DRAWING NUMBER:313-6908,CAGE CODE: 11083, style_designator: CIRCULAR, end_item_identification: 3805-01-560-2384 GRADER,ROAD,MOTORIZED. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-179-5293, 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
31-3691-1
NSN: 5330-01-179-5293
NIINs: 011795293, 015795338
FSC: 5330 — Packing and Gasket Materials
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OVERALL
hole_diameter0.098 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter3.900 INCHES NOMINAL IN
special_featuresITEM IS NUMBER 57 ON DRAWING ON DRAWING NUMBER:313-6908,CAGE CODE: 11083
style_designatorCIRCULAR
bolt_hole_quantity6
end_item_identification3805-01-560-2384 GRADER,ROAD,MOTORIZED
cross-sectional_thickness3.484 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
part_name_assigned_by_controlling_agencyWIRING HARNESS
NSN5330-01-179-5293
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 31-3691-1 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
•
CROSS-SECTIONAL THICKNESS: 3.484 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 3.900 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 6
•
MATERIAL: RUBBER SILICONE CLASS Q OVERALL
•
HOLE DIAMETER: 0.098 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS3.484 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER3.900 INCHES NOMINAL IN
BOLT HOLE QUANTITY6
MATERIALRUBBER SILICONE CLASS Q OVERALL
HOLE DIAMETER0.098 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31-3691-1?
31-3691-1 is a WIRING HARNESS,BRANCHED.
What is the NSN for 31-3691-1?
31-3691-1 is cataloged in the U.S. Government catalog under NSN 5330-01-179-5293. 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.