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Technical Data Sheet
PartsTable / COMPONENT / 1120R-B-0.500-9
1120R-B-0.500-9 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The 1120R-B-0.500-9 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-285-6966, 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
1120R-B-0.500-9
NSN: 5310-01-285-6966
FSC: 5310
CAGE: 51506 — ACCURATE SCREW MACHINE CORP DIV ACCURATE SCREW MACHINE CORPORATION (USA)
SPECIFICATIONS
Part Number1120R-B-0.500-9
NSN5310-01-285-6966
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1120R-B-0.500-9 · 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
•
NUT THICKNESS: 0.500 INCHES NOMINAL IN
•
NUT STYLE: ROUND
•
THREAD DIRECTION: RIGHT-HAND
•
NUT DIAMETER: 0.250 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 40
•
MATERIAL: COPPER ALLOY 360 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NUT THICKNESS0.500 INCHES NOMINAL IN
NUT STYLEROUND
THREAD DIRECTIONRIGHT-HAND
NUT DIAMETER0.250 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.112 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH40
MATERIALCOPPER ALLOY 360 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-N-290,TY 7 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTNICKEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
11-4785Interchangeable
interchangeable cross-reference
interchangeable
2708 1-2 4AInterchangeable
interchangeable cross-reference
interchangeable
EE-49756Interchangeable
interchangeable cross-reference
interchangeable
9424Interchangeable
interchangeable cross-reference
interchangeable
AA52533-A-2-2Interchangeable
interchangeable cross-reference
interchangeable
MIL-T-43218Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1120R-B-0.500-9?
1120R-B-0.500-9 is a 1120R-B-0.500-9.
What parts can replace 1120R-B-0.500-9?
There are 20 known substitutes for 1120R-B-0.500-9: 11-4785, 2708 1-2 4A, EE-49756 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1120R-B-0.500-9?
1120R-B-0.500-9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-285-6966. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026