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627783 — NUT,SELF-LOCKING,DOUBLE HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

627783: NUT,SELF-LOCKING,DOUBLE HEXAGON.

NUT,SELF-LOCKING,DOUBLE HEXAGON. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: DOUBLE HEXAGON, nut_height: 0.365 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNJS, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-044-2809, 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
627783
NSN: 5310-01-044-2809
FSC: 5310 — Nuts and Washers
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleDOUBLE HEXAGON
nut_height0.365 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNJS
thread_directionRIGHT-HAND
width_across_flats0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch28
material_document_and_classificationAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-044-2809
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 627783 · 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: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
•
THREAD SERIES: UNJS
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT HEIGHT: 0.365 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
•
NUT STYLE: DOUBLE HEXAGON
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
THREAD SERIESUNJS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT HEIGHT0.365 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
NUT STYLEDOUBLE HEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH28
MATERIALSTEEL CORROSION RESISTING 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 627783?
627783 is a NUT,SELF-LOCKING,DOUBLE HEXAGON.
What is the NSN for 627783?
627783 is cataloged in the U.S. Government catalog under NSN 5310-01-044-2809. This indicates validated use in U.S. government and defense supply chains.
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