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57A5A30-4 — NUT,SELF-LOCKING,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

57A5A30-4: NUT,SELF-LOCKING,CLINCH.

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: CLINCH, nut_height: 0.260 INCHES NOMINAL IN, pilot_length: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-062-7795, 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
57A5A30-4
NSN: 5310-00-062-7795
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleCLINCH
nut_height0.260 INCHES NOMINAL IN
pilot_length0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
nominal_thread_size0.138 INCHES IN
NSN5310-00-062-7795
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 57A5A30-4 · 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
•
WIDTH ACROSS FLATS: 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
PILOT DIAMETER: 0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
•
PILOT LENGTH: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
PILOT DIAMETER0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
PILOT LENGTH0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.260 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
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
27FP2-632Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 57A5A30-4?
57A5A30-4 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 57A5A30-4?
There is 1 known substitute for 57A5A30-4: 27FP2-632. Substitute compatibility should be verified for your specific system.
What is the NSN for 57A5A30-4?
57A5A30-4 is cataloged in the U.S. Government catalog under NSN 5310-00-062-7795. 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.