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Technical Data Sheet
PartsTable / COMPONENT / 85931
85931 ✓ 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 COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL, end_item_identification: 2310-01-123-2666 TRUCK,AMBULANCE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-291-7209, 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
85931
NSN: 5315-00-291-7209
FSC: 5315
CAGE: 57712 — TELEMECHANICS INC (USA)
SPECIFICATIONS
materialSTEEL
end_item_identification2310-01-123-2666 TRUCK,AMBULANCE
NSN5315-00-291-7209
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 85931 · 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: STEEL OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
PIN OVERALL DIAMETER: 0.1560 INCHES NOMINAL IN
•
PIN OVERALL LENGTH: 0.750 INCHES NOMINAL IN
•
THREAD LENGTH: 0.188 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 40
•
PIN GRIP LENGTH: 0.562 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
PIN OVERALL DIAMETER0.1560 INCHES NOMINAL IN
PIN OVERALL LENGTH0.750 INCHES NOMINAL IN
THREAD LENGTH0.188 INCHES NOMINAL IN
THREAD QUANTITY PER INCH40
PIN GRIP LENGTH0.562 INCHES NOMINAL IN
THREAD CLASS2A A
NOMINAL THREAD SIZE0.138 INCHES IN
SURFACE TREATMENTNICKEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
85931Interchangeable
interchangeable cross-reference
interchangeable
174598Interchangeable
interchangeable cross-reference
interchangeable
410857Interchangeable
interchangeable cross-reference
interchangeable
778-5931Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 85931?
85931 is a COVER,ACCESS.
What parts can replace 85931?
There are 4 known substitutes for 85931: 85931, 174598, 410857 and 1 more. Substitute compatibility should be verified for your specific system.
Is 85931 still available?
85931 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026