PartsTable
Technical Data Sheet
PartsTable / COMPONENT / PMC89-6
PMC89-6 ✓ 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 hole_diameter: 2.625 INCHES MINIMUM AND 2.626 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES COUNTERBORE WALL, shoulder_height: 0.405 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN, outside_diameter: 3.427 INCHES MINIMUM AND 3.447 INCHES MAXIMUM IN, style_designator: SHOULDERED, shoulder_diameter: 2.752 INCHES MINIMUM AND 2.753 INCHES MAXIMUM 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 5310-00-736-1029, 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
PMC89-6
NSN: 5310-00-736-1029
FSC: 5310
CAGE: 17128 — PYRAMID MACHINE CORP DIV OF TRANSUPPORT INC (USA)
SPECIFICATIONS
hole_diameter2.625 INCHES MINIMUM AND 2.626 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES COUNTERBORE WALL
shoulder_height0.405 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN
outside_diameter3.427 INCHES MINIMUM AND 3.447 INCHES MAXIMUM IN
style_designatorSHOULDERED
shoulder_diameter2.752 INCHES MINIMUM AND 2.753 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
material_thickness0.063 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
material_document_and_classificationQQ-C-390,TYPE 2,CLASS 4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-736-1029
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PMC89-6 · 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 DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 2.752 INCHES MINIMUM AND 2.753 INCHES MAXIMUM IN
•
SURFACE FINISH: 32.0 MICROINCHES COUNTERBORE WALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,TYPE 2,CLASS 4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: SHOULDERED
•
OUTSIDE DIAMETER: 3.427 INCHES MINIMUM AND 3.447 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER2.752 INCHES MINIMUM AND 2.753 INCHES MAXIMUM IN
SURFACE FINISH32.0 MICROINCHES COUNTERBORE WALL
SURFACE FINISH32.0 MICROINCHES TOP
SURFACE TREATMENTCADMIUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,TYPE 2,CLASS 4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSHOULDERED
OUTSIDE DIAMETER3.427 INCHES MINIMUM AND 3.447 INCHES MAXIMUM IN
SURFACE FINISH32.0 MICROINCHES INNER
MATERIAL THICKNESS0.063 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
2205ETN9Interchangeable
interchangeable cross-reference
interchangeable
72-6970-095Interchangeable
interchangeable cross-reference
interchangeable
27566Interchangeable
interchangeable cross-reference
interchangeable
51505Interchangeable
interchangeable cross-reference
interchangeable
30-400-201Interchangeable
interchangeable cross-reference
interchangeable
PM-1550Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy PMC89-6?
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 PMC89-6?
PMC89-6 is a WASHER,SHOULDERED.
What parts can replace PMC89-6?
There are 17 known substitutes for PMC89-6: 2205ETN9, 72-6970-095, 27566 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PMC89-6?
PMC89-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-736-1029. This indicates validated use in U.S. government and defense supply chains.
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 — PMC89-6

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