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Technical Data Sheet
PartsTable / COMPONENT / B18.22.1
B18.22.1 ✓ 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 B18.22.1 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-579-2069, 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
B18.22.1
NSN: 5310-00-579-2069
FSC: 5310
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberB18.22.1
NSN5310-00-579-2069
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B18.22.1 · 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
•
HOLE DIAMETER: 0.931 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 1 GRADE AND A CLASS
•
MATERIAL: STEEL OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
PERIPHERAL SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 2.243 INCHES MINIMUM AND 2.280 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.931 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN
SPECIAL FEATURESPACKAGED IN 1 LB BOX LBS
NONDEFINITIVE SPEC/STD DATAA TYPE AND 1 GRADE AND A CLASS
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER2.243 INCHES MINIMUM AND 2.280 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.136 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
FF-W-92 TY A GR 1 CL AInterchangeable
interchangeable cross-reference
interchangeable
446284Interchangeable
interchangeable cross-reference
interchangeable
9090763-9Interchangeable
interchangeable cross-reference
interchangeable
28912Interchangeable
interchangeable cross-reference
interchangeable
ANSI-B18.22.1 TYAInterchangeable
interchangeable cross-reference
interchangeable
FF-W-92Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B18.22.1?
B18.22.1 is a B18.22.1.
What parts can replace B18.22.1?
There are 8 known substitutes for B18.22.1: FF-W-92 TY A GR 1 CL A, 446284, 9090763-9 and 5 more. Substitute compatibility should be verified for your specific system.
Is B18.22.1 still available?
B18.22.1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026