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16449UWN918 — NUT,SELF-LOCKING,INTERNAL WRENCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

16449UWN918: NUT,SELF-LOCKING,INTERNAL WRENCH.

NUT,SELF-LOCKING,INTERNAL WRENCH. Key specifications include material: STEEL NUT, nut_style: INTERNAL WRENCHING, nut_height: 1.188 INCHES NOMINAL IN, nut_diameter: 0.969 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-595-9768, 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
16449UWN918
NSN: 5310-00-595-9768
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL NUT
nut_styleINTERNAL WRENCHING
nut_height1.188 INCHES NOMINAL IN
nut_diameter0.969 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM NUT
nominal_thread_size0.562 INCHES IN
internal_drive_styleDOUBLE HEXAGON
thread_quantity_per_inch18
NSN5310-00-595-9768
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 16449UWN918 · 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
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.562 INCHES IN
•
NUT DIAMETER: 0.969 INCHES NOMINAL IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
NUT HEIGHT: 1.188 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM NUT
•
INTERNAL DRIVE STYLE: DOUBLE HEXAGON
TECHNICAL CHARACTERISTICS
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.562 INCHES IN
NUT DIAMETER0.969 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT1.188 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM NUT
INTERNAL DRIVE STYLEDOUBLE HEXAGON
NUT STYLEINTERNAL WRENCHING
THREAD CLASS3B
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 16449UWN918?
16449UWN918 is a NUT,SELF-LOCKING,INTERNAL WRENCH.
What is the NSN for 16449UWN918?
16449UWN918 is cataloged in the U.S. Government catalog under NSN 5310-00-595-9768. 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.