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45501-25 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

45501-25: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_height: 0.312 INCHES NOMINAL IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNF, locking_feature: PREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-266-4409, 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
45501-25
NSN: 5310-00-266-4409
FSC: 5310 — Nuts and Washers
CAGE: 19315 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_height0.312 INCHES NOMINAL IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNF
locking_featurePREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR ZINC OVERALL
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch28
NSN5310-00-266-4409
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 45501-25 · 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
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
•
NUT HEIGHT: 0.312 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
THREAD SERIESUNF
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT0.312 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD CLASS3B
THREAD QUANTITY PER INCH28
SUBSTITUTES & CROSS-REFERENCES 6
AN365B428Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS20365B428Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MILN25027Reference document
Same NSN cross-reference
Reference document — Identification reference
PT99E048Reference document
Same NSN cross-reference
Reference document — Secondary reference
01714Reference document
Same NSN cross-reference
Reference document — Secondary reference
ANN5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 45501-25?
45501-25 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 45501-25?
There are 6 known substitutes for 45501-25: AN365B428, MS20365B428, MILN25027 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 45501-25?
45501-25 is cataloged in the U.S. Government catalog under NSN 5310-00-266-4409. This indicates validated use in U.S. government and defense supply chains.
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