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91118A120 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

91118A120: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY AND COPPER ALLOY OVERALL, end_item_identification: 5180-01-518-7339;SHOP EQUIPMENT GENERAL PURPOSE, part_name_assigned_by_controlling_agency: LOCKING WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-588-4291, 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
91118A120
NSN: 5310-01-588-4291
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY AND COPPER ALLOY OVERALL
end_item_identification5180-01-518-7339;SHOP EQUIPMENT GENERAL PURPOSE
part_name_assigned_by_controlling_agencyLOCKING WASHER
NSN5310-01-588-4291
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91118A120 · 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: NICKEL ALLOY AND COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESSPRING LOCK TYPE: STANDARD;FOR SCREW SIZE: 3/8 INCH NOMINAL;ROCKWELL HARDNESS: NOT RATED;SPECIFICATIONS MET: ASME B18.21.1;MATERIAL TYPE: NICKEL-COPPER ALLOY (MONEL);FINISH: PLAIN;INSIDE DIAMETER: 0.380 INCH NOMINAL;OUTSIDE DIAMETER: 0.680 INCH NOMINAL;MINIMUM THICKNESS: 0.090 INCH NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCKING WASHER
END ITEM IDENTIFICATION5180-01-518-7339;SHOP EQUIPMENT GENERAL PURPOSE
MATERIALNICKEL ALLOY AND COPPER ALLOY 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91118A120?
91118A120 is a WASHER,LOCK.
What is the NSN for 91118A120?
91118A120 is cataloged in the U.S. Government catalog under NSN 5310-01-588-4291. This indicates validated use in U.S. government and defense supply chains.
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