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5223245 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5223245: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1137 OVERALL, nut_style: HEXAGON, nut_height: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UN, hardness_rating: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-522-3245, 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
5223245
NSN: 5310-00-522-3245
FSC: 5310 — Nuts and Washers
CAGE: 00000
SPECIFICATIONS
materialSTEEL COMP 1137 OVERALL
nut_styleHEXAGON
nut_height0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
thread_class2B
thread_seriesUN
hardness_rating34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
surface_treatmentTIN OVERALL
width_across_flats0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
nominal_thread_size0.688 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch20
NSN5310-00-522-3245
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5223245 · 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: 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
•
THREAD SERIES: UN
•
HARDNESS RATING: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5024 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.688 INCHES IN
•
NUT HEIGHT: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
•
SURFACE TREATMENT: TIN OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
THREAD SERIESUN
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5024 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.688 INCHES IN
NUT HEIGHT0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
SURFACE TREATMENTTIN OVERALL
NUT STYLEHEXAGON
THREAD CLASS2B
SUBSTITUTES & CROSS-REFERENCES 1
88257Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5223245?
5223245 is a NUT,PLAIN,HEXAGON.
What parts can replace 5223245?
There is 1 known substitute for 5223245: 88257. Substitute compatibility should be verified for your specific system.
What is the NSN for 5223245?
5223245 is cataloged in the U.S. Government catalog under NSN 5310-00-522-3245. 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.