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0020-04-522-0004 — NUT ASSEMBLY,RETAINER PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

0020-04-522-0004: NUT ASSEMBLY,RETAINER PLATE.

The NUT ASSEMBLY,RETAINER PLATE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: PLATE, nut_height: 0.375 INCHES NOMINAL IN, plate_width: 0.750 INCHES NOMINAL IN, thread_class: 2B, barrel_height: 0.313 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-604-1980, 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
0020-04-522-0004
NSN: 5310-01-604-1980
FSC: 5310 — Nuts and Washers
CAGE: 26916 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV MULTIPLE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_stylePLATE
nut_height0.375 INCHES NOMINAL IN
plate_width0.750 INCHES NOMINAL IN
thread_class2B
barrel_height0.313 INCHES NOMINAL IN
thread_length0.313 INCHES NOMINAL OVERALL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
base_thickness0.050 INCHES NOMINAL IN
plate_thickness0.063 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_size0.250 INCHES IN
NSN5310-01-604-1980
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0020-04-522-0004 · 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: 0.063 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
PLATE WIDTH: 0.750 INCHES NOMINAL IN
•
THREAD LENGTH: 0.313 INCHES NOMINAL OVERALL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT HEIGHT: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.063 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
PLATE WIDTH0.750 INCHES NOMINAL IN
THREAD LENGTH0.313 INCHES NOMINAL OVERALL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT HEIGHT0.375 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, WELD, ROUND BASE
NUT STYLEPLATE
THREAD CLASS2B
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 1
002-004522Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 0020-04-522-0004?
0020-04-522-0004 is a NUT ASSEMBLY,RETAINER PLATE.
What parts can replace 0020-04-522-0004?
There is 1 known substitute for 0020-04-522-0004: 002-004522. Substitute compatibility should be verified for your specific system.
What is the NSN for 0020-04-522-0004?
0020-04-522-0004 is cataloged in the U.S. Government catalog under NSN 5310-01-604-1980. 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.