PartsTable
Technical Data Sheet
855012 ✓ 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: COPPER OVERALL, thickness: 0.0495 INCHES MINIMUM AND 0.0525 INCHES MAXIMUM IN, hole_diameter: 0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN, overall_diameter: 0.381 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-171-3679, 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
855012
NSN: 5310-00-171-3679
FSC: 5310
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialCOPPER OVERALL
thickness0.0495 INCHES MINIMUM AND 0.0525 INCHES MAXIMUM IN
hole_diameter0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
overall_diameter0.381 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-171-3679
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 855012 · 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: 0.0495 INCHES MINIMUM AND 0.0525 INCHES MAXIMUM IN
MATERIAL: COPPER OVERALL
PERIPHERAL SHAPE STYLE: ROUND
HOLE DIAMETER: 0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLE: ROUND
OVERALL DIAMETER: 0.381 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.0495 INCHES MINIMUM AND 0.0525 INCHES MAXIMUM IN
MATERIALCOPPER OVERALL
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER0.381 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
AN817-8DInterchangeable
interchangeable cross-reference
interchangeable
F8903Interchangeable
interchangeable cross-reference
interchangeable
19033Interchangeable
interchangeable cross-reference
interchangeable
AN515-6R7Interchangeable
interchangeable cross-reference
interchangeable
MS35206-223Interchangeable
interchangeable cross-reference
interchangeable
19033ADXInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 855012?
855012 is a WASHER,FLAT.
What parts can replace 855012?
There are 9 known substitutes for 855012: AN817-8D, F8903, 19033 and 6 more. Substitute compatibility should be verified for your specific system.
Is 855012 still available?
855012 is currently cancelled.
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