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NP12220PCBA ✓ 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,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.375 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-010-3027, 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
NP12220PCBA
NSN: 5310-00-010-3027
FSC: 5310
CAGE: 82005 — ALLARD NAZARIAN GROUP, INC. DBA GRANITE STATE MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.375 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.625 INCHES NOMINAL IN
nominal_thread_size0.438 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch20
nondefinitive_spec/std_dataA TYPE
NSN5310-00-010-3027
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NP12220PCBA · 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
•
THREAD CLASS: 2B
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
THREAD SERIES: UNF
•
THREAD QUANTITY PER INCH: 20
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
NUT STYLE: HEXAGON
•
NONDEFINITIVE SPEC/STD DATA: A TYPE
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
NOMINAL THREAD SIZE0.438 INCHES IN
THREAD SERIESUNF
THREAD QUANTITY PER INCH20
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NUT STYLEHEXAGON
NONDEFINITIVE SPEC/STD DATAA TYPE
MATERIALSTEEL OVERALL
NUT HEIGHT0.375 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
120370Interchangeable
interchangeable cross-reference
interchangeable
5-57Interchangeable
interchangeable cross-reference
interchangeable
GM120370Interchangeable
interchangeable cross-reference
interchangeable
30X01Interchangeable
interchangeable cross-reference
interchangeable
30X60Interchangeable
interchangeable cross-reference
interchangeable
99106Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NP12220PCBA?
NP12220PCBA is a NUT,PLAIN,HEXAGON.
What parts can replace NP12220PCBA?
There are 22 known substitutes for NP12220PCBA: 120370, 5-57, GM120370 and 19 more. Substitute compatibility should be verified for your specific system.
Is NP12220PCBA still available?
NP12220PCBA 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