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1AO2I0049H — NUT,SELF-LOCKING,ASSEMBLED WASHE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1AO2I0049H: NUT,SELF-LOCKING,ASSEMBLED WASHE.

NUT,SELF-LOCKING,ASSEMBLED WASHE. Key specifications include material: STEEL COMP 8740 OVERALL, nut_style: FLAT WITH TURNED UP EDGE, temp_rating: 450.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.316 INCHES MINIMUM AND 0.336 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-308-4823, 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
1AO2I0049H
NSN: 5310-01-308-4823
FSC: 5310 — Nuts and Washers
CAGE: F4749 — CNIM SYSTEMES INDUSTRIELS (FRA)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
nut_styleFLAT WITH TURNED UP EDGE
temp_rating450.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
overall_height0.316 INCHES MINIMUM AND 0.336 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.421 INCHES NOMINAL IN
nominal_thread_size0.312 INCHES IN
washer_outside_diameter0.560 INCHES NOMINAL IN
NSN5310-01-308-4823
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1AO2I0049H · 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
•
WASHER OUTSIDE DIAMETER: 0.560 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.421 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
SPECIFICATION/STANDARD DATA: 80205-NAS1726 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.316 INCHES MINIMUM AND 0.336 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.560 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.421 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING450.0 FAHRENHEIT NOMINAL DEGF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
SPECIFICATION/STANDARD DATA80205-NAS1726 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
SURFACE TREATMENTCADMIUM OVERALL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1AO2I0049H?
1AO2I0049H is a NUT,SELF-LOCKING,ASSEMBLED WASHE.
What is the NSN for 1AO2I0049H?
1AO2I0049H is cataloged in the U.S. Government catalog under NSN 5310-01-308-4823. This indicates validated use in U.S. government and defense supply chains.
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