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ST7M223T8 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ST7M223T8: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.242 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNJS, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-086-8561, 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
ST7M223T8
NSN: 5310-01-086-8561
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialTITANIUM ALLOY OVERALL
nut_styleHEXAGON
nut_height0.242 INCHES NOMINAL IN
thread_class3B
thread_seriesUNJS
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM BOTH ENDS
width_across_flats1.000 INCHES NOMINAL IN
nominal_thread_size0.719 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch20
NSN5310-01-086-8561
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ST7M223T8 · 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: 1.000 INCHES NOMINAL IN
•
THREAD SERIES: UNJS
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.719 INCHES IN
•
NUT HEIGHT: 0.242 INCHES NOMINAL IN
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM BOTH ENDS
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.000 INCHES NOMINAL IN
THREAD SERIESUNJS
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.719 INCHES IN
NUT HEIGHT0.242 INCHES NOMINAL IN
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM BOTH ENDS
NUT STYLEHEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH20
MATERIALTITANIUM ALLOY 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
10122101Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST7M223T8?
ST7M223T8 is a NUT,PLAIN,HEXAGON.
What parts can replace ST7M223T8?
There is 1 known substitute for ST7M223T8: 10122101. Substitute compatibility should be verified for your specific system.
What is the NSN for ST7M223T8?
ST7M223T8 is cataloged in the U.S. Government catalog under NSN 5310-01-086-8561. 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.