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Technical Data Sheet
PartsTable / COMPONENT / NAS391B6P
NAS391B6P ✓ 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 WASHER,FINISHING is a the manufacturer industrial component. Key specifications include material: STEEL OR COPPER ALLOY OVERALL, hole_diameter: 0.179 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN, overall_height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, outside_diameter: 0.442 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN, style_designator: FINISHING, material_thickness: 0.015 INCHES MINIMUM AND 0.021 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 5310-00-198-9315, 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
NAS391B6P
NSN: 5310-00-198-9315
FSC: 5310
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL OR COPPER ALLOY OVERALL
hole_diameter0.179 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
overall_height0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
outside_diameter0.442 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
style_designatorFINISHING
material_thickness0.015 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
NSN5310-00-198-9315
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS391B6P · 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
•
OUTSIDE DIAMETER: 0.442 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: FINISHING
•
HOLE DIAMETER: 0.179 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.015 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
•
MATERIAL: STEEL OR COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.442 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
STYLE DESIGNATORFINISHING
OVERALL HEIGHT0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
HOLE DIAMETER0.179 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
MATERIAL THICKNESS0.015 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
MATERIALSTEEL OR COPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
C192Interchangeable
interchangeable cross-reference
interchangeable
17454Interchangeable
interchangeable cross-reference
interchangeable
G386C6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS391B6P?
NAS391B6P is a WASHER,FINISHING.
What parts can replace NAS391B6P?
There are 3 known substitutes for NAS391B6P: C192, 17454, G386C6. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS391B6P?
NAS391B6P is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-198-9315. 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