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357350 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

357350: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: HEXAGON, nut_height: 0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNEF, hardness_rating: 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-652-7296, 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
357350
NSN: 5310-00-652-7296
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHEXAGON
nut_height0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNEF
hardness_rating35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
width_across_flats0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN
nominal_thread_size0.688 INCHES IN
bearing_surface_typeCHAMFERED
drilled_hole_diameter0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
hole_type_and_quantity6 DRILLED
NSN5310-00-652-7296
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 357350 · 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: 0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN
•
THREAD SERIES: UNEF
•
HARDNESS RATING: 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
•
HOLE CONFIGURATION STYLE: CONFIGURATION H
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.688 INCHES IN
•
NUT HEIGHT: 0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN
THREAD SERIESUNEF
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
HOLE CONFIGURATION STYLECONFIGURATION H
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.688 INCHES IN
NUT HEIGHT0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
DRILLED HOLE DIAMETER0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
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 1
3576350Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 357350?
357350 is a NUT,PLAIN,HEXAGON.
What parts can replace 357350?
There is 1 known substitute for 357350: 3576350. Substitute compatibility should be verified for your specific system.
What is the NSN for 357350?
357350 is cataloged in the U.S. Government catalog under NSN 5310-00-652-7296. 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.