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PartsTable / COMPONENT / XA-379
XA-379 ✓ 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 PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OR STEEL COMP 1340 OVERALL, first_end_style: SQUARE, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL, surface_treatment: ZINC OVERALL, pin_overall_length: 2.375 INCHES NOMINAL IN, first_hole_diameter: 0.188 INCHES NOMINAL 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 5315-00-538-1196, 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
XA-379
NSN: 5315-00-538-1196
FSC: 5315
CAGE: 74410 — SAF-HOLLAND, INC. (USA)
SPECIFICATIONS
materialSTEEL OR STEEL COMP 1340 OVERALL
first_end_styleSQUARE
hardness_rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
surface_treatmentZINC OVERALL
pin_overall_length2.375 INCHES NOMINAL IN
first_hole_diameter0.188 INCHES NOMINAL IN
pin_overall_diameter0.6250 INCHES NOMINAL IN
second_hole_diameter0.188 INCHES NOMINAL IN
hole_arrangement_styleBOTH END DRILLED
material_document_and_classificationQQ-S-624 FED SPEC 2ND MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
center_to_center_distance_between_holes2.312 INCHES NOMINAL IN
NSN5315-00-538-1196
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: XA-379 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
FIRST END STYLE: SQUARE
•
SURFACE TREATMENT: ZINC OVERALL
•
PIN OVERALL LENGTH: 2.375 INCHES NOMINAL IN
•
SECOND HOLE DIAMETER: 0.188 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: BOTH END DRILLED
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
PIN OVERALL DIAMETER: 0.6250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC 2ND MATERIAL RESPONSE OVERALL
FIRST END STYLESQUARE
SURFACE TREATMENTZINC OVERALL
PIN OVERALL LENGTH2.375 INCHES NOMINAL IN
SECOND HOLE DIAMETER0.188 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEBOTH END DRILLED
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
PIN OVERALL DIAMETER0.6250 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN HOLES2.312 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN0.219 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
101019Interchangeable
interchangeable cross-reference
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FFS92Interchangeable
interchangeable cross-reference
interchangeable
30X562Interchangeable
interchangeable cross-reference
interchangeable
12X199Interchangeable
interchangeable cross-reference
interchangeable
3064686Interchangeable
interchangeable cross-reference
interchangeable
379Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XA-379?
XA-379 is a PIN,STRAIGHT,HEADLESS.
What parts can replace XA-379?
There are 26 known substitutes for XA-379: 101019, FFS92, 30X562 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for XA-379?
XA-379 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-538-1196. 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