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73761-820 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

73761-820: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include nut_height: 0.328 INCHES NOMINAL IN, surface_treatment: SILVER OVERALL, width_across_flats: 0.846 INCHES NOMINAL IN, material_document_and_classification: AMS5737 FED SPEC 1ST MATERIAL RESPONSE OR AMS5731 FED SPEC 2ND MATERIAL RESPONSE OVERALL, surface_treatment_document_and_classification: AMS5731 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-226-8957, 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
73761-820
NSN: 5310-01-226-8957
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
nut_height0.328 INCHES NOMINAL IN
surface_treatmentSILVER OVERALL
width_across_flats0.846 INCHES NOMINAL IN
material_document_and_classificationAMS5737 FED SPEC 1ST MATERIAL RESPONSE OR AMS5731 FED SPEC 2ND MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationAMS5731 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-226-8957
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 73761-820 · 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
•
WIDTH ACROSS FLATS: 0.846 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS5731 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5737 FED SPEC 1ST MATERIAL RESPONSE OR AMS5731 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
NUT HEIGHT: 0.328 INCHES NOMINAL IN
•
SURFACE TREATMENT: SILVER OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.846 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS5731 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5737 FED SPEC 1ST MATERIAL RESPONSE OR AMS5731 FED SPEC 2ND MATERIAL RESPONSE OVERALL
NUT HEIGHT0.328 INCHES NOMINAL IN
SURFACE TREATMENTSILVER 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 1
ST33D43C080Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 73761-820?
73761-820 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 73761-820?
There is 1 known substitute for 73761-820: ST33D43C080. Substitute compatibility should be verified for your specific system.
What is the NSN for 73761-820?
73761-820 is cataloged in the U.S. Government catalog under NSN 5310-01-226-8957. This indicates validated use in U.S. government and defense supply chains.
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