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3174101 — SEAT,VALVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3174101: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, flange_diameter: 2.015 INCHES NOMINAL IN, body_outside_diameter: 1.420 INCHES NOMINAL IN, flange_seat_to_disk_end_height: 0.840 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-720-8506, 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
3174101
NSN: 5310-00-720-8506
NIINs: 007208506, 013484379
FSC: 5310 — Nuts and Washers
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
flange_diameter2.015 INCHES NOMINAL IN
body_outside_diameter1.420 INCHES NOMINAL IN
flange_seat_to_disk_end_height0.840 INCHES NOMINAL IN
NSN5310-00-720-8506
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3174101 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL DIAMETER: 3.375 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-20166 TY A GRADE M MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP M OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 2.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER3.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-20166 TY A GRADE M MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALSTEEL COMP M OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER2.125 INCHES NOMINAL IN
THICKNESS0.375 INCHES NOMINAL IN
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 3174101?
3174101 is a SEAT,VALVE.
What is the NSN for 3174101?
3174101 is cataloged in the U.S. Government catalog under NSN 5310-00-720-8506. 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.