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26J611 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

26J611: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.625 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, thread_direction: LEFT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-264-0409, 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
26J611
NSN: 5310-00-264-0409
FSC: 5310 — Nuts and Washers
CAGE: 11660 — WESTINGHOUSE ELECTRIC CORP CONTROL BUSINESS UNIT
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.625 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
thread_directionLEFT-HAND
width_across_flats1.813 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
nominal_thread_size1.125 INCHES IN
bearing_surface_typeWASHER FACED
drilled_hole_diameter0.257 INCHES NOMINAL IN
thread_quantity_per_inch12
hole_nominal_thread_diameter0.312 INCHES IN
NSN5310-00-264-0409
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 26J611 · 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: 1.813 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
•
HOLE THREAD QUANTITY PER INCH: 18
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-890,CL BS MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 1.125 INCHES IN
•
NUT HEIGHT: 0.625 INCHES NOMINAL IN
•
DRILLED HOLE DIAMETER: 0.257 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.813 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
HOLE THREAD QUANTITY PER INCH18
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890,CL BS MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE1.125 INCHES IN
NUT HEIGHT0.625 INCHES NOMINAL IN
DRILLED HOLE DIAMETER0.257 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS3B
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 2
DD445S4601-225ALT4PC321Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1110360Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 26J611?
26J611 is a NUT,PLAIN,HEXAGON.
What parts can replace 26J611?
There are 2 known substitutes for 26J611: DD445S4601-225ALT4PC321, 1110360. Substitute compatibility should be verified for your specific system.
What is the NSN for 26J611?
26J611 is cataloged in the U.S. Government catalog under NSN 5310-00-264-0409. 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.