PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 6AX1
6AX1 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.0548 INCHES MINIMUM AND 0.0648 INCHES MAXIMUM IN, hole_diameter: 0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, hardness_rating: 32.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM, overall_diameter: 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN, features_provided: CASEHARDENED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-4546, 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
6AX1
NSN: 5310-00-274-4546
FSC: 5310
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.0548 INCHES MINIMUM AND 0.0648 INCHES MAXIMUM IN
hole_diameter0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
overall_diameter0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
features_providedCASEHARDENED
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification3990-01-444-5196 CEMENT MIXER; MRAP - M-ATV; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationQQ-P-421 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-274-4546
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6AX1 · 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
•
THICKNESS: 0.0548 INCHES MINIMUM AND 0.0648 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
•
HOLE DIAMETER: 0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OVERALL DIAMETER: 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-421 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.0548 INCHES MINIMUM AND 0.0648 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-421 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
END ITEM IDENTIFICATION3990-01-444-5196 CEMENT MIXER; MRAP - M-ATV; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
CENTER HOLE SHAPE STYLEROUND
FEATURES PROVIDEDCASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
A3249Interchangeable
interchangeable cross-reference
interchangeable
481-21Interchangeable
interchangeable cross-reference
interchangeable
16726Interchangeable
interchangeable cross-reference
interchangeable
LCVP8997PC12Interchangeable
interchangeable cross-reference
interchangeable
3249Interchangeable
interchangeable cross-reference
interchangeable
LCVP1298875-12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 6AX1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 6AX1?
6AX1 is a WASHER,FLAT.
What parts can replace 6AX1?
There are 12 known substitutes for 6AX1: A3249, 481-21, 16726 and 9 more. Substitute compatibility should be verified for your specific system.
Is 6AX1 still available?
6AX1 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 6AX1

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026