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Technical Data Sheet
PartsTable / COMPONENT / 3690700C91L
3690700C91L ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: GANG CHANNEL, SELF LOCKING, base_width: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN, nut_height: 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN, nut_length: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN, thread_class: 3B. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-01-568-5987, 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
3690700C91L
NSN: 4710-01-568-5987
FSC: 4710
CAGE: 338X5 — ND DEFENSE LLC (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleGANG CHANNEL, SELF LOCKING
base_width0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
nut_height0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
nut_length0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
base_thickness0.055 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
precious_materialSILVER
surface_treatmentSILVER OVERALL
NSN4710-01-568-5987
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 3690700C91L · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
422996Interchangeable
interchangeable cross-reference
interchangeable
422995Interchangeable
interchangeable cross-reference
interchangeable
19474-5Interchangeable
interchangeable cross-reference
interchangeable
3690700C91Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3690700C91L?
3690700C91L is a TUBE ASSEMBLY,METAL.
What parts can replace 3690700C91L?
There are 4 known substitutes for 3690700C91L: 422996, 422995, 19474-5 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3690700C91L?
3690700C91L is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-01-568-5987. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026