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91831A125 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

91831A125: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nominal_thread_size: 0.312 INCHES IN, end_item_identification: AN/AQS-24A CONTAINERS, SHIPPING AND STORAGE A, thread_quantity_per_inch: 24, part_name_assigned_by_controlling_agency: HEX NYLON-INSERT LOCKNUTS; ELASTIC LOCKNUTS OR ELASTIC STOP NUTS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-559-8280, 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
91831A125
NSN: 5310-01-559-8280
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nominal_thread_size0.312 INCHES IN
end_item_identificationAN/AQS-24A CONTAINERS, SHIPPING AND STORAGE A
thread_quantity_per_inch24
part_name_assigned_by_controlling_agencyHEX NYLON-INSERT LOCKNUTS; ELASTIC LOCKNUTS OR ELASTIC STOP NUTS
NSN5310-01-559-8280
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91831A125 · 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
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
THREAD QUANTITY PER INCH: 24
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.312 INCHES IN
SPECIAL FEATURESONCE THE NYLON LOCKING ELEMENT IS FULLY ENGAGED, THESE REUSABLE LOCKNUTS RESIST VIBRATION AND WILL HOLD IN PLACE ANYWHERE ALONG THE THREADS OF THE MATING PART. THE LOCKING ELEMENT LIMITS FLUID LEAKAGE AND WONT DAMAGE OR DISTORT THREADS; IT IS EFFECTIVE UP TO 250 DEG F DEGF
PART NAME ASSIGNED BY CONTROLLING AGENCYHEX NYLON-INSERT LOCKNUTS; ELASTIC LOCKNUTS OR ELASTIC STOP NUTS
END ITEM IDENTIFICATIONAN/AQS-24A CONTAINERS, SHIPPING AND STORAGE A
THREAD QUANTITY PER INCH24
MATERIALSTEEL CORROSION RESISTING 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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91831A125?
91831A125 is a NUT,SELF-LOCKING,HEXAGON.
What is the NSN for 91831A125?
91831A125 is cataloged in the U.S. Government catalog under NSN 5310-01-559-8280. This indicates validated use in U.S. government and defense supply chains.
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