PartsTable
Technical Data Sheet
MIL-DTL-32258 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYIMIDE LOCKING INSERT, nut_style: HEXAGON, nut_height: 1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNJC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-616-2934, 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
MIL-DTL-32258
NSN: 5310-00-616-2934
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialPLASTIC POLYIMIDE LOCKING INSERT
nut_styleHEXAGON
nut_height1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNJC
locking_featureSELF-LOCKING
thread_directionRIGHT-HAND
width_across_flats1.614 INCHES MINIMUM AND 1.634 INCHES MAXIMUM IN
nominal_thread_size1.000 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch8
NSN5310-00-616-2934
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-DTL-32258 · 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-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL THREAD SIZE: 0.190 INCHES IN
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
SURFACE TREATMENT: CADMIUM OVERALL
PLATE THICKNESS: 0.032 INCHES NOMINAL IN
THREAD CLASS: 3B
DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER: 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SPECIAL FEATURESBEVEL SEAT
NOMINAL THREAD SIZE0.190 INCHES IN
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
SURFACE TREATMENTCADMIUM OVERALL
PLATE THICKNESS0.032 INCHES NOMINAL IN
THREAD CLASS3B
DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2643-820-12 ITEM 53Interchangeable
interchangeable cross-reference
interchangeable
211070737Interchangeable
interchangeable cross-reference
interchangeable
M25027/1-14CInterchangeable
interchangeable cross-reference
interchangeable
218017951Interchangeable
interchangeable cross-reference
interchangeable
M25027/1-16CInterchangeable
interchangeable cross-reference
interchangeable
70677321-0136Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-32258?
MIL-DTL-32258 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace MIL-DTL-32258?
There are 13 known substitutes for MIL-DTL-32258: 2643-820-12 ITEM 53, 211070737, M25027/1-14C and 10 more. Substitute compatibility should be verified for your specific system.
Is MIL-DTL-32258 still available?
MIL-DTL-32258 is currently cancelled.
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