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Technical Data Sheet
PartsTable / COMPONENT / 887C050489
887C050489 ✓ 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,SHOULDERED is a the manufacturer industrial component. Key specifications include color: BLACK OVERALL, material: STEEL COMP 303 OVERALL, hole_diameter: 1.375 INCHES NOMINAL IN, overall_height: 0.086 INCHES NOMINAL IN, shoulder_height: 0.028 INCHES NOMINAL IN, outside_diameter: 2.000 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 5310-01-451-0845, 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
887C050489
NSN: 5310-01-451-0845
FSC: 5310
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
colorBLACK OVERALL
materialSTEEL COMP 303 OVERALL
hole_diameter1.375 INCHES NOMINAL IN
overall_height0.086 INCHES NOMINAL IN
shoulder_height0.028 INCHES NOMINAL IN
outside_diameter2.000 INCHES NOMINAL IN
special_features(.152) DRIVE THRU AND 82.0 DG CSK TO .266 DIA 4 HOLES.FEATGNO. 24 DRIVE THRU AND 82.0 DEG CSK TO.266 IN.DIA 4 HOLES. IN
style_designatorSHOULDERED
shoulder_diameter1.499 INCHES NOMINAL IN
surface_treatmentOXIDE OVERALL
material_document_and_classificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-451-0845
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 887C050489 · 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
•
SURFACE TREATMENT: OXIDE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: SHOULDERED
•
SHOULDER HEIGHT: 0.028 INCHES NOMINAL IN
•
HOLE DIAMETER: 1.375 INCHES NOMINAL IN
•
COLOR: BLACK OVERALL
•
OUTSIDE DIAMETER: 2.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURES(.152) DRIVE THRU AND 82.0 DG CSK TO .266 DIA 4 HOLES.FEATGNO. 24 DRIVE THRU AND 82.0 DEG CSK TO.266 IN.DIA 4 HOLES. IN
SURFACE TREATMENTOXIDE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORSHOULDERED
SHOULDER HEIGHT0.028 INCHES NOMINAL IN
HOLE DIAMETER1.375 INCHES NOMINAL IN
COLORBLACK OVERALL
OUTSIDE DIAMETER2.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL HEIGHT0.086 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
28023Interchangeable
interchangeable cross-reference
interchangeable
AA51146B-1A5BInterchangeable
interchangeable cross-reference
interchangeable
33.026Interchangeable
interchangeable cross-reference
interchangeable
50489Interchangeable
interchangeable cross-reference
interchangeable
X12339Interchangeable
interchangeable cross-reference
interchangeable
34531Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 887C050489?
887C050489 is a WASHER,SHOULDERED.
What parts can replace 887C050489?
There are 13 known substitutes for 887C050489: 28023, AA51146B-1A5B, 33.026 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 887C050489?
887C050489 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-451-0845. 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