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Technical Data Sheet

M81935/3-5 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

M81935/3-5: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-055-3857, 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
M81935/3-5
NSN: 5310-01-055-3857
FSC: 5310 — Nuts and Washers
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
Part NumberM81935/3-5
NSN5310-01-055-3857
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M81935/3-5 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESSTEEL,MIL-S-18729,COMP 4130; CADMIUM AND CHROMATE,QQ-P-416,TY 2,CL 2; ROCKWELL HARDNESS C SCALE,35.0 MIN TO 39.0 MAX; 0.319 IN. MIN AND 0.329 IN. MAX ID; 0.500 IN. MIN AND 0.520 IN. MAX OD; HAS INTERNAL KEY 0.041 IN. LG AND 0.055 IN. W; 0.110 IN. THK; HAS 0.067 INCHES DIA LOCKING WIRE HOLE. IN
SUBSTITUTES & CROSS-REFERENCES 6
AS81935/3-5Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS81935/3Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MIL-B-81935/3Reference document
Same NSN cross-reference
Reference document — Secondary reference
M81935/3-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS81935Reference document
Same NSN cross-reference
Reference document — Secondary reference
5342PL0835585Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M81935/3-5?
M81935/3-5 is a WASHER,KEY.
What parts can replace M81935/3-5?
There are 6 known substitutes for M81935/3-5: AS81935/3-5, SAE-AS81935/3, MIL-B-81935/3 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M81935/3-5?
M81935/3-5 is cataloged in the U.S. Government catalog under NSN 5310-01-055-3857. This indicates validated use in U.S. government and defense supply chains.
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