PartsTable
Technical Data Sheet
MS35691-56 ✓ 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,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 464 OR COPPER ALLOY 462 OVERALL, nut_style: HEXAGON, nut_height: 0.363 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-051-6815, 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
MS35691-56
NSN: 5310-00-051-6815
FSC: 5310
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY 464 OR COPPER ALLOY 462 OVERALL
nut_styleHEXAGON
nut_height0.363 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
surface_treatmentOXIDE OVERALL
width_across_flats0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch18
nondefinitive_spec/std_data2 TYPE AND 5 STYLE
NSN5310-00-051-6815
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS35691-56 · 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
NUT STYLE: HEXAGON
NUT HEIGHT: 0.363 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE: 0.625 INCHES IN
THREAD QUANTITY PER INCH: 18
THREAD SERIES: UNF
THREAD CLASS: 2B
WIDTH ACROSS FLATS: 0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
NUT HEIGHT0.363 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD QUANTITY PER INCH18
THREAD SERIESUNF
THREAD CLASS2B
WIDTH ACROSS FLATS0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 5 STYLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
444054Interchangeable
interchangeable cross-reference
interchangeable
119093AInterchangeable
interchangeable cross-reference
interchangeable
1000636Interchangeable
interchangeable cross-reference
interchangeable
E-3962ITEM93AInterchangeable
interchangeable cross-reference
interchangeable
922967Interchangeable
interchangeable cross-reference
interchangeable
FF-N-836Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS35691-56?
MS35691-56 is a NUT,PLAIN,HEXAGON.
What parts can replace MS35691-56?
There are 6 known substitutes for MS35691-56: 444054, 119093A, 1000636 and 3 more. Substitute compatibility should be verified for your specific system.
Is MS35691-56 still available?
MS35691-56 is currently cancelled.
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