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PartsTable / COMPONENT / NAS699-3B
NAS699-3B ✓ 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,ROUND is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, nut_style: ROUND, nut_diameter: 2.797 INCHES MINIMUM AND 2.827 INCHES MAXIMUM IN, thread_class: 3B, nut_thickness: 0.625 INCHES NOMINAL IN, thread_series: UN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-847-3937, 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
NAS699-3B
NSN: 5310-00-847-3937
FSC: 5310
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
nut_styleROUND
nut_diameter2.797 INCHES MINIMUM AND 2.827 INCHES MAXIMUM IN
thread_class3B
nut_thickness0.625 INCHES NOMINAL IN
thread_seriesUN
thread_directionRIGHT-HAND
drive_point_depth0.313 INCHES NOMINAL IN
drive_point_width0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
surface_treatmentANODIZE OVERALL
nominal_thread_size2.375 INCHES IN
drive_point_quantity2
NSN5310-00-847-3937
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS699-3B · 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 DIRECTION: RIGHT-HAND
•
DRIVE POINT QUANTITY: 2
•
THREAD SERIES: UN
•
NOMINAL THREAD SIZE: 2.375 INCHES IN
•
THREAD QUANTITY PER INCH: 16
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
DRIVE POINT DEPTH: 0.313 INCHES NOMINAL IN
•
NUT STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
DRIVE POINT QUANTITY2
THREAD SERIESUN
NOMINAL THREAD SIZE2.375 INCHES IN
THREAD QUANTITY PER INCH16
MATERIALALUMINUM ALLOY OVERALL
DRIVE POINT DEPTH0.313 INCHES NOMINAL IN
NUT STYLEROUND
NUT THICKNESS0.625 INCHES NOMINAL IN
DRIVE POINT WIDTH0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
RELEASE 2986Interchangeable
interchangeable cross-reference
interchangeable
1N938Interchangeable
interchangeable cross-reference
interchangeable
5961008920889Interchangeable
interchangeable cross-reference
interchangeable
418299-3Interchangeable
interchangeable cross-reference
interchangeable
VBE408-40Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS699-3B?
NAS699-3B is a NUT,PLAIN,ROUND.
What parts can replace NAS699-3B?
There are 5 known substitutes for NAS699-3B: RELEASE 2986, 1N938, 5961008920889 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS699-3B?
NAS699-3B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-847-3937. 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