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6395057-1 — NUT,PLAIN,ASSEMBLED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6395057-1: NUT,PLAIN,ASSEMBLED WASHER.

The NUT,PLAIN,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include material: COBALT ALLOY OVERALL, nut_style: FLAT, nut_height: 0.425 INCHES NOMINAL IN, thread_class: 28, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.640 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-507-9407, 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
6395057-1
NSN: 5310-01-507-9407
FSC: 5310 — Nuts and Washers
CAGE: 31442 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialCOBALT ALLOY OVERALL
nut_styleFLAT
nut_height0.425 INCHES NOMINAL IN
thread_class28
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height0.640 INCHES NOMINAL IN
special_featuresSOLUTION HEAT TREATED THEN WORK STRENGTHENED (MP-35N)
thread_directionRIGHT-HAND
width_across_flats1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
drilled_hole_diameter0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
hole_type_and_quantity3 DRILLED
NSN5310-01-507-9407
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6395057-1 · 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: 1.555 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE AMS 5844, 1.75 DIA. ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
NUT HEIGHT: 0.425 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.640 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER1.555 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
WIDTH ACROSS FLATS1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE AMS 5844, 1.75 DIA. ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
NUT HEIGHT0.425 INCHES NOMINAL IN
DRILLED HOLE DIAMETER0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
SPECIAL FEATURESSOLUTION HEAT TREATED THEN WORK STRENGTHENED (MP-35N)
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
6395057Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6395057-1?
6395057-1 is a NUT,PLAIN,ASSEMBLED WASHER.
What parts can replace 6395057-1?
There is 1 known substitute for 6395057-1: 6395057. Substitute compatibility should be verified for your specific system.
What is the NSN for 6395057-1?
6395057-1 is cataloged in the U.S. Government catalog under NSN 5310-01-507-9407. 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.