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5277633 — NUT,PLAIN,CASTELLATED,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5277633: NUT,PLAIN,CASTELLATED,HEXAGON.

The NUT,PLAIN,CASTELLATED,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1335 OR STEEL COMP 1340 OVERALL, nut_style: CASTELLATED, HEXAGON, nut_height: 0.391 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-527-7633, 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
5277633
NSN: 5310-00-527-7633
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1335 OR STEEL COMP 1340 OVERALL
nut_styleCASTELLATED, HEXAGON
nut_height0.391 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
hardness_rating28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
width_across_flats0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch24
material_document_and_classificationQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-00-527-7633
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5277633 · 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: 0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT HEIGHT: 0.391 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
•
NUT STYLE: CASTELLATED, HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
THREAD SERIESUNF
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
NUT HEIGHT0.391 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
NUT STYLECASTELLATED, HEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH24
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 5277633?
5277633 is a NUT,PLAIN,CASTELLATED,HEXAGON.
What is the NSN for 5277633?
5277633 is cataloged in the U.S. Government catalog under NSN 5310-00-527-7633. This indicates validated use in U.S. government and defense supply chains.
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