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25639-001 — NUT,PLAIN,DODECAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

25639-001: NUT,PLAIN,DODECAGON.

The NUT,PLAIN,DODECAGON is a the manufacturer industrial component. Key specifications include nut_height: 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND, precious_material: SILVER, surface_treatment: SILVER OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-006-6888, 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
25639-001
NSN: 5310-01-006-6888
FSC: 5310 — Nuts and Washers
CAGE: 74063 — TE CONNECTIVITY CORPORATION (USA)
SPECIFICATIONS
nut_height0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
precious_materialSILVER
surface_treatmentSILVER OVERALL
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch24
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-01-006-6888
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 25639-001 · 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: 0.438 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
PRECIOUS MATERIAL: SILVER
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT HEIGHT: 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
•
SURFACE TREATMENT: SILVER OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
THREAD SERIESUNF
PRECIOUS MATERIALSILVER
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
NUT HEIGHT0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
SURFACE TREATMENTSILVER OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD CLASS2B
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 25639-001?
25639-001 is a NUT,PLAIN,DODECAGON.
What is the NSN for 25639-001?
25639-001 is cataloged in the U.S. Government catalog under NSN 5310-01-006-6888. 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.