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PartsTable / COMPONENT / 291-03715
291-03715 ✓ 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: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.737 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-889-8858, 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
291-03715
NSN: 5310-00-889-8858
FSC: 5310
CAGE: 51501 — ROGERS BROTHERS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.737 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats1.219 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch10
NSN5310-00-889-8858
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 291-03715 · 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
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD QUANTITY PER INCH: 10
•
MATERIAL: STEEL OVERALL
•
THREAD CLASS: 2B
•
NUT HEIGHT: 0.737 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.750 INCHES IN
BEARING SURFACE TYPECHAMFERED
THREAD QUANTITY PER INCH10
MATERIALSTEEL OVERALL
THREAD CLASS2B
NUT HEIGHT0.737 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NUT STYLEHEXAGON
WIDTH ACROSS FLATS1.219 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
4TZ2061DInterchangeable
interchangeable cross-reference
interchangeable
172-309Interchangeable
interchangeable cross-reference
interchangeable
5473078Interchangeable
interchangeable cross-reference
interchangeable
RW200-75Interchangeable
interchangeable cross-reference
interchangeable
3715Interchangeable
interchangeable cross-reference
interchangeable
13411Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 291-03715?
291-03715 is a NUT,PLAIN,HEXAGON.
What parts can replace 291-03715?
There are 16 known substitutes for 291-03715: 4TZ2061D, 172-309, 5473078 and 13 more. Substitute compatibility should be verified for your specific system.
Is 291-03715 still available?
291-03715 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026