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PL21 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

PL21: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: STEEL COMP 416 OVERALL, thickness: 0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN, body_style: STRAIGHT SHAPE, EXTERNAL COUPLING, head_style: FLAT CHAMFER, key_height: 0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN, shell_type: SOLID. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-010-6749, 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
PL21
NSN: 5315-00-010-6749
NIINs: 000106749, 011017807, 012134150, 013946665
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
thickness0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
head_styleFLAT CHAMFER
key_height0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
shell_typeSOLID
head_height0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
overall_width0.570 INCHES NOMINAL IN
terminal_typeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
thread_length0.162 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN
NSN5315-00-010-6749
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PL21 · 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: 10.0 ROCKWELL C NOMINAL OVERALL
•
STARTING EDGE SHAPE: ROUND
•
STYLE DESIGNATOR: ROUND BOTTOM
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CIRCLE DIAMETER: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
KEY HEIGHT: 0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: WOODRUFF 3
•
STARTING EDGE RADIUS: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING10.0 ROCKWELL C NOMINAL OVERALL
STARTING EDGE SHAPEROUND
STYLE DESIGNATORROUND BOTTOM
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CIRCLE DIAMETER0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
KEY HEIGHT0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONWOODRUFF 3
STARTING EDGE RADIUS0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1035 OVERALL
THICKNESS0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 10
74142SReference document
Same NSN cross-reference
Reference document — Secondary reference
168JReference document
Same NSN cross-reference
Reference document — Secondary reference
S22X3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
KY1-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
N2515HReference document
Same NSN cross-reference
Reference document — Secondary reference
X6-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PL21?
PL21 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace PL21?
There are 10 known substitutes for PL21: 74142S, 168J, S22X3 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PL21?
PL21 is cataloged in the U.S. Government catalog under NSN 5315-00-010-6749. This indicates validated use in U.S. government and defense supply chains.
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