PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1-8X3-8
1-8X3-8 ✓ 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 KEY,WOODRUFF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1030 OVERALL, first_end_style: SQUARE, pin_overall_length: 0.375 INCHES NOMINAL IN, pin_overall_diameter: 0.1250 INCHES NOMINAL IN, second_end_relationship_with_first_end: IDENTICAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-070-2294, 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
1-8X3-8
NSN: 5315-00-070-2294
FSC: 5315
CAGE: 70276 — ALLEN MFG CO SUB OF CHICAGO PNEUMATIC TOOL CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1030 OVERALL
first_end_styleSQUARE
pin_overall_length0.375 INCHES NOMINAL IN
pin_overall_diameter0.1250 INCHES NOMINAL IN
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-070-2294
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1-8X3-8 · 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
•
FIRST END TAPER LENGTH: 0.034 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
FIRST END STYLE: CHAMFERED
•
PIN OVERALL DIAMETER: 0.1251 INCHES MINIMUM AND 0.1253 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
SURFACE FINISH: 63.0 MICROINCHES OUTSIDE DIAMETER
•
SECOND END STYLE: RADIUS
•
SECOND END CORNER RADIUS: 0.040 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END TAPER LENGTH0.034 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
FIRST END STYLECHAMFERED
PIN OVERALL DIAMETER0.1251 INCHES MINIMUM AND 0.1253 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER
SECOND END STYLERADIUS
SECOND END CORNER RADIUS0.040 INCHES NOMINAL IN
FIRST END TAPER ANGLE5.0 DEGREES NOMINAL
PIN OVERALL LENGTH0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
99-109-06Interchangeable
interchangeable cross-reference
interchangeable
10-20688Interchangeable
interchangeable cross-reference
interchangeable
214RInterchangeable
interchangeable cross-reference
interchangeable
X79217Interchangeable
interchangeable cross-reference
interchangeable
10386409Interchangeable
interchangeable cross-reference
interchangeable
1/8 X 3/8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-8X3-8?
1-8X3-8 is a KEY,WOODRUFF.
What parts can replace 1-8X3-8?
There are 12 known substitutes for 1-8X3-8: 99-109-06, 10-20688, 214R and 9 more. Substitute compatibility should be verified for your specific system.
Is 1-8X3-8 still available?
1-8X3-8 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