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3921C26 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3921C26: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: ROUND, thread_class: 2A A, thread_series: UN, special_features: OUTER NUT;TAIL SECTION ASSEMBLY;2 HOLES, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-476-7289, 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
3921C26
NSN: 5310-01-476-7289
FSC: 5310 — Nuts and Washers
CAGE: 31442 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleROUND
thread_class2A A
thread_seriesUN
special_featuresOUTER NUT;TAIL SECTION ASSEMBLY;2 HOLES
surface_treatmentPASSIVATE OVERALL
nominal_thread_size2.625 INCHES IN
thread_quantity_per_inch20
material_document_and_classificationQ-S-763,CLASS 316, COND A FED SPEC 13TH MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35, TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE NUT
NSN5310-01-476-7289
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3921C26 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35, TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE NUT
•
THREAD SERIES: UN
•
MATERIAL DOCUMENT AND CLASSIFICATION: Q-S-763,CLASS 316, COND A FED SPEC 13TH MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 2.625 INCHES IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NUT STYLE: ROUND
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35, TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE NUT
THREAD SERIESUN
MATERIAL DOCUMENT AND CLASSIFICATIONQ-S-763,CLASS 316, COND A FED SPEC 13TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE2.625 INCHES IN
SPECIAL FEATURESOUTER NUT;TAIL SECTION ASSEMBLY;2 HOLES
SURFACE TREATMENTPASSIVATE OVERALL
NUT STYLEROUND
THREAD CLASS2A A
THREAD QUANTITY PER INCH20
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
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3921C26?
3921C26 is a NUT,PLAIN,ROUND.
What is the NSN for 3921C26?
3921C26 is cataloged in the U.S. Government catalog under NSN 5310-01-476-7289. This indicates validated use in U.S. government and defense supply chains.
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