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Technical Data Sheet
PartsTable / COMPONENT / A52427-L-1.125
A52427-L-1.125 ✓ 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 A52427-L-1.125 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-270-5463, 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
A52427-L-1.125
NSN: 5310-01-270-5463
FSC: 5310
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberA52427-L-1.125
NSN5310-01-270-5463
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A52427-L-1.125 · 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
•
HARDNESS RATING: 88.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 90.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
•
THREAD SERIES: UN
•
NOMINAL THREAD SIZE: 1.125 INCHES IN
•
THREAD QUANTITY PER INCH: 16
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633,TY 2,CL 2 OR 3 ASSN STD ALL TREATMENT RESPONSES OVERALL EXCEPT THREADS
•
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL EXCEPT THREADS
•
MATERIAL: STEEL OVERALL
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING88.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 90.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
THREAD SERIESUN
NOMINAL THREAD SIZE1.125 INCHES IN
THREAD QUANTITY PER INCH16
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633,TY 2,CL 2 OR 3 ASSN STD ALL TREATMENT RESPONSES OVERALL EXCEPT THREADS
SURFACE TREATMENTZINC AND CHROMATE OVERALL EXCEPT THREADS
MATERIALSTEEL OVERALL
THREAD CLASS2B
WIDTH ACROSS FLATS1.485 INCHES NOMINAL IN
NUT HEIGHT0.880 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
43812Interchangeable
interchangeable cross-reference
interchangeable
37892Interchangeable
interchangeable cross-reference
interchangeable
178921Interchangeable
interchangeable cross-reference
interchangeable
BM379Interchangeable
interchangeable cross-reference
interchangeable
232813-2Interchangeable
interchangeable cross-reference
interchangeable
7B2380Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A52427-L-1.125?
A52427-L-1.125 is a A52427-L-1.125.
What parts can replace A52427-L-1.125?
There are 30 known substitutes for A52427-L-1.125: 43812, 37892, 178921 and 27 more. Substitute compatibility should be verified for your specific system.
Is A52427-L-1.125 still available?
A52427-L-1.125 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026