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PD12 — Technical Data Sheet

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— · 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 SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: GLASS ENCLOSURE, nut_style: HEXAGON, nut_height: 0.375 INCHES NOMINAL IN, thread_class: 3B, overall_width: 0.125 INCHES NOMINAL IN, thread_series: UNF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-011-7050, 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
PD12
NSN: 5310-00-011-7050
FSC: 5310
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
materialGLASS ENCLOSURE
nut_styleHEXAGON
nut_height0.375 INCHES NOMINAL IN
thread_class3B
overall_width0.125 INCHES NOMINAL IN
thread_seriesUNF
overall_height46.000 INCHES NOMINAL IN
overall_length46.000 INCHES NOMINAL IN
mounting_methodTERMINAL
terminal_length0.750 INCHES MINIMUM IN
overall_diameter0.187 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
NSN5310-00-011-7050
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PD12 · 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 STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 20
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
THREAD SERIES: UNF
•
WIDTH ACROSS FLATS: 0.625 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: A TYPE
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH20
NOMINAL THREAD SIZE0.438 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD SERIESUNF
WIDTH ACROSS FLATS0.625 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATAA TYPE
MATERIALSTEEL OVERALL
THREAD CLASS3B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
50MM612-5Interchangeable
interchangeable cross-reference
interchangeable
N1-7Interchangeable
interchangeable cross-reference
interchangeable
CPC1949-7Interchangeable
interchangeable cross-reference
interchangeable
149-1008-7Interchangeable
interchangeable cross-reference
interchangeable
US12Interchangeable
interchangeable cross-reference
interchangeable
804748Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PD12?
PD12 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace PD12?
There are 19 known substitutes for PD12: 50MM612-5, N1-7, CPC1949-7 and 16 more. Substitute compatibility should be verified for your specific system.
Is PD12 still available?
PD12 is currently cancelled.
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Last verified: September 2026