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ZA6640-048 — NUT,PLAIN,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ZA6640-048: NUT,PLAIN,PLATE.

The NUT,PLAIN,PLATE is a the manufacturer industrial component. Key specifications include material: STEEL BASE, nut_style: PLATE, nut_height: 0.438 INCHES NOMINAL IN, nut_length: 1.281 INCHES NOMINAL IN, plate_width: 0.580 INCHES NOMINAL IN, thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-930-3088, 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
ZA6640-048
NSN: 5310-00-930-3088
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialSTEEL BASE
nut_stylePLATE
nut_height0.438 INCHES NOMINAL IN
nut_length1.281 INCHES NOMINAL IN
plate_width0.580 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
plate_thickness0.032 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_size0.250 INCHES IN
mounting_hole_diameter0.109 INCHES NOMINAL IN
nut_mounting_provisionSTRAIGHT HOLES
NSN5310-00-930-3088
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ZA6640-048 · 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
•
PLATE THICKNESS: 0.032 INCHES NOMINAL IN
•
NUT LENGTH: 1.281 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PLATE WIDTH: 0.580 INCHES NOMINAL IN
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
MOUNTING HOLE DIAMETER: 0.109 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.032 INCHES NOMINAL IN
NUT LENGTH1.281 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PLATE WIDTH0.580 INCHES NOMINAL IN
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MOUNTING HOLE DIAMETER0.109 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER0.500 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH1.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ZA6640-048?
ZA6640-048 is a NUT,PLAIN,PLATE.
What is the NSN for ZA6640-048?
ZA6640-048 is cataloged in the U.S. Government catalog under NSN 5310-00-930-3088. 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.