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PartsTable / COMPONENT / 5310AC1-015
5310AC1-015 ✓ 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 NUT,PLAIN,CASTELLATED,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, nut_style: CASTELLATED, HEXAGON, nut_height: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UN, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-600-6756, 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
5310AC1-015
NSN: 5310-00-600-6756
FSC: 5310
CAGE: 81996 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
nut_styleCASTELLATED, HEXAGON
nut_height0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
thread_class3B
thread_seriesUN
thread_directionRIGHT-HAND
countersink_angle89.5 DEGREES MINIMUM AND 90.5 DEGREES MAXIMUM NUT
surface_treatmentCADMIUM OVERALL
width_across_flats1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
nominal_thread_size1.125 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
bearing_surface_finish125.0 MICROINCHES
NSN5310-00-600-6756
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5310AC1-015 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758,COND D MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
•
WIDTH ACROSS FLATS: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
NUT STYLE: CASTELLATED, HEXAGON
•
THREAD CLASS: 3B
•
THREAD SERIES: UN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758,COND D MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BEARING SURFACE FINISH125.0 MICROINCHES
WIDTH ACROSS FLATS1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLECASTELLATED, HEXAGON
THREAD CLASS3B
THREAD SERIESUN
MATERIALSTEEL COMP 4130 OVERALL
COUNTERSINK ANGLE89.5 DEGREES MINIMUM AND 90.5 DEGREES MAXIMUM NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
120 55/64Interchangeable
interchangeable cross-reference
interchangeable
2411 55/64Interchangeable
interchangeable cross-reference
interchangeable
49755Interchangeable
interchangeable cross-reference
interchangeable
51055Interchangeable
interchangeable cross-reference
interchangeable
A2465Interchangeable
interchangeable cross-reference
interchangeable
2465Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5310AC1-015?
5310AC1-015 is a NUT,PLAIN,CASTELLATED,HEXAGON.
What parts can replace 5310AC1-015?
There are 12 known substitutes for 5310AC1-015: 120 55/64, 2411 55/64, 49755 and 9 more. Substitute compatibility should be verified for your specific system.
Is 5310AC1-015 still available?
5310AC1-015 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