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122-6818601 PC — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

122-6818601 PC: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-251-0088, 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
122-6818601 PC
NSN: 5310-00-251-0088
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch16
material_document_and_classificationSAE,GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-251-0088
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 122-6818601 PC · 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: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE,GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT HEIGHT: 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE,GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
NUT HEIGHT0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH16
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 8
124-4322621 PC 109Reference document
Same NSN cross-reference
Reference document — Secondary reference
122-2557733 PC NO. 71Reference document
Same NSN cross-reference
Reference document — Secondary reference
2420529Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
M2027QReference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
122-2420529 PIECE 99Reference document
Same NSN cross-reference
Reference document — Secondary reference
1D4717Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 122-6818601 PC?
122-6818601 PC is a NUT,PLAIN,HEXAGON.
What parts can replace 122-6818601 PC?
There are 8 known substitutes for 122-6818601 PC: 124-4322621 PC 109, 122-2557733 PC NO. 71, 2420529 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 122-6818601 PC?
122-6818601 PC is cataloged in the U.S. Government catalog under NSN 5310-00-251-0088. 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.