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PLH3510 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

PLH3510: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.490 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-448-9035, 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
PLH3510
NSN: 5310-01-448-9035
FSC: 5310 — Nuts and Washers
CAGE: 7A514 — SPACE AIR SUPPLY INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
overall_height0.490 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
washer_thickness0.050 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.743 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES IN
washer_outside_diameter0.976 INCHES MINIMUM IN
thread_quantity_per_inch18
NSN5310-01-448-9035
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PLH3510 · 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
•
WASHER OUTSIDE DIAMETER: 0.976 INCHES MINIMUM IN
•
WIDTH ACROSS FLATS: 0.743 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TYPE 1 OR 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
WASHER THICKNESS: 0.050 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.490 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.976 INCHES MINIMUM IN
WIDTH ACROSS FLATS0.743 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE 1 OR 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
WASHER THICKNESS0.050 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.625 INCHES IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
NUT STYLEHEXAGON
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 2
52LH3324-108Reference document
Same NSN cross-reference
Reference document — Secondary reference
C5078347-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PLH3510?
PLH3510 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What parts can replace PLH3510?
There are 2 known substitutes for PLH3510: 52LH3324-108, C5078347-1. Substitute compatibility should be verified for your specific system.
What is the NSN for PLH3510?
PLH3510 is cataloged in the U.S. Government catalog under NSN 5310-01-448-9035. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.