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Technical Data Sheet
PartsTable / COMPONENT / 18627-01
18627-01 ✓ 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: STEEL COMP 8630 OVERALL, nut_style: ROUND, nut_diameter: 0.862 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN, thread_class: 2B, nut_thickness: 0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN, thread_series: UNEF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-484-1980, 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
18627-01
NSN: 5310-00-484-1980
FSC: 5310
CAGE: 3CPE0 — SAFRAN POWER USA LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 8630 OVERALL
nut_styleROUND
nut_diameter0.862 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
thread_class2B
nut_thickness0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
thread_seriesUNEF
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.801 INCHES MINIMUM AND 0.811 INCHES MAXIMUM IN
nominal_thread_size0.688 INCHES IN
counterbore_diameter0.818 INCHES MINIMUM AND 0.825 INCHES MAXIMUM NUT IN
nut_counterbore_depth0.120 INCHES NOMINAL NUT IN
NSN5310-00-484-1980
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 18627-01 · 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
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NUT DIAMETER: 0.862 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
NUT THICKNESS: 0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.688 INCHES IN
•
NUT COUNTERBORE DEPTH: 0.120 INCHES NOMINAL NUT IN
•
THREAD QUANTITY PER INCH: 24
•
NUT STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT DIAMETER0.862 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
NUT THICKNESS0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.688 INCHES IN
NUT COUNTERBORE DEPTH0.120 INCHES NOMINAL NUT IN
THREAD QUANTITY PER INCH24
NUT STYLEROUND
COUNTERBORE DIAMETER0.818 INCHES MINIMUM AND 0.825 INCHES MAXIMUM NUT IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
AS18627Interchangeable
interchangeable cross-reference
interchangeable
18627Interchangeable
interchangeable cross-reference
interchangeable
B51C51CInterchangeable
interchangeable cross-reference
interchangeable
143100010Interchangeable
interchangeable cross-reference
interchangeable
13960NLN7Interchangeable
interchangeable cross-reference
interchangeable
A143100010Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18627-01?
18627-01 is a NUT,PLAIN,ROUND.
What parts can replace 18627-01?
There are 12 known substitutes for 18627-01: AS18627, 18627, B51C51C and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18627-01?
18627-01 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-484-1980. 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