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MF1031-08 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MF1031-08: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: PLATE, nut_height: 0.250 INCHES NOMINAL IN, nut_length: 0.713 INCHES NOMINAL IN, plate_width: 0.327 INCHES NOMINAL IN, temp_rating: 900.0 FAHRENHEIT NOMINAL DEGF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-680-5309, 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
MF1031-08
NSN: 5310-00-680-5309
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_stylePLATE
nut_height0.250 INCHES NOMINAL IN
nut_length0.713 INCHES NOMINAL IN
plate_width0.327 INCHES NOMINAL IN
temp_rating900.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
plate_thickness0.105 INCHES NOMINAL IN
thread_directionRIGHT-HAND
precious_materialSILVER
NSN5310-00-680-5309
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MF1031-08 · 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
•
PLATE THICKNESS: 0.105 INCHES NOMINAL IN
•
NUT LENGTH: 0.713 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
PRECIOUS MATERIAL: SILVER
•
PLATE WIDTH: 0.327 INCHES NOMINAL IN
•
TEMP RATING: 900.0 FAHRENHEIT NOMINAL DEGF
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
MATERIAL DOCUMENT AND CLASSIFICATION: CARPENTER A286,FSCM 73197 MFR REF SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.105 INCHES NOMINAL IN
NUT LENGTH0.713 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
PRECIOUS MATERIALSILVER
PLATE WIDTH0.327 INCHES NOMINAL IN
TEMP RATING900.0 FAHRENHEIT NOMINAL DEGF
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MATERIAL DOCUMENT AND CLASSIFICATIONCARPENTER A286,FSCM 73197 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.098 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES 2
9059778Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
950322-6Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MF1031-08?
MF1031-08 is a NUT,SELF-LOCKING,PLATE.
What parts can replace MF1031-08?
There are 2 known substitutes for MF1031-08: 9059778, 950322-6. Substitute compatibility should be verified for your specific system.
What is the NSN for MF1031-08?
MF1031-08 is cataloged in the U.S. Government catalog under NSN 5310-00-680-5309. 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.