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353174 — VALVE,DIAPHRAGM,FLAT,AB IGNTR RE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

353174: VALVE,DIAPHRAGM,FLAT,AB IGNTR RE.

VALVE,DIAPHRAGM,FLAT,AB IGNTR RE. Key specifications include FSC APPLICATION DATA: ACFT ENGINE FUEL SYSTEM COMPONENTS. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-576-7985, 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
353174
NSN: 5310-00-576-7985
NIINs: 005767985, 010759613
FSC: 5310 — Nuts and Washers
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
FSC APPLICATION DATAACFT ENGINE FUEL SYSTEM COMPONENTS
NSN5310-00-576-7985
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 353174 · 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
•
STYLE DESIGNATOR: CONVEX
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.748 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.110 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 2024 OVERALL
•
HOLE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCONVEX
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.748 INCHES NOMINAL IN
MATERIAL THICKNESS0.110 INCHES NOMINAL IN
SPECIAL FEATURES45 DEG RADIUS
MATERIALALUMINUM ALLOY 2024 OVERALL
HOLE DIAMETER0.500 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 353174?
353174 is a VALVE,DIAPHRAGM,FLAT,AB IGNTR RE.
What is the NSN for 353174?
353174 is cataloged in the U.S. Government catalog under NSN 5310-00-576-7985. 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.