PartsTable
Technical Data Sheet
FFN845 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,WING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: WING, thread_class: 3B, body_diameter: 0.510 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.530 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-004-3220, 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
FFN845
NSN: 5310-00-004-3220
FSC: 5310
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleWING
thread_class3B
body_diameter0.510 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height0.530 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN
special_featuresSURFACE TREATMENT OVERALL UNLESS OTHER SPECIFIED
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
wing_spread_width1.120 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
fabrication_methodFORGED
nominal_thread_size0.138 INCHES IN
NSN5310-00-004-3220
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FFN845 · 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
THREAD CLASS: 2B
MATERIAL: STEEL OVERALL
DRILLED HOLE DIAMETER: 0.070 INCHES NOMINAL IN
WING SPREAD WIDTH: 1.310 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH: 24
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 2 STYLE
BODY DIAMETER: 0.640 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
HOLE TYPE AND QUANTITY: 1 DRILLED
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
MATERIALSTEEL OVERALL
DRILLED HOLE DIAMETER0.070 INCHES NOMINAL IN
WING SPREAD WIDTH1.310 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH24
NONDEFINITIVE SPEC/STD DATAA TYPE AND 2 STYLE
BODY DIAMETER0.640 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
HOLE TYPE AND QUANTITY1 DRILLED
NUT STYLEWING
NOMINAL THREAD SIZE0.375 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
300199Interchangeable
interchangeable cross-reference
interchangeable
5900025-0000.003Interchangeable
interchangeable cross-reference
interchangeable
5310008278487Interchangeable
interchangeable cross-reference
interchangeable
219205Interchangeable
interchangeable cross-reference
interchangeable
SNRG.M113.1803.001Interchangeable
interchangeable cross-reference
interchangeable
MS35426-16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FFN845?
FFN845 is a NUT,PLAIN,WING.
What parts can replace FFN845?
There are 6 known substitutes for FFN845: 300199, 5900025-0000.003, 5310008278487 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FFN845?
FFN845 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-004-3220. This indicates validated use in U.S. government and defense supply chains.
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