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68A18 — NUT,SPRING ADJUSTING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

68A18: NUT,SPRING ADJUSTING.

The NUT,SPRING ADJUSTING is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: BRASS QQ-B-611 COND D,1.625 IN. O/A LG,0.875 IN.

DIA ONE END,0.562 IN. DIA OTHER END,THREAD SIZE 1.188-16 N 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-033-2190, 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
68A18
NSN: 5310-00-033-2190
FSC: 5310 — Nuts and Washers
CAGE: 43491 — GENERAL SIGNAL CORP (USA)
SPECIFICATIONS
general_characteristics_item_descriptionBRASS QQ-B-611 COND D,1.625 IN. O/A LG,0.875 IN. DIA ONE END,0.562 IN. DIA OTHER END,THREAD SIZE 1.188-16 N 3A A
NSN5310-00-033-2190
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68A18 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRASS QQ-B-611 COND D,1.625 IN. O/A LG,0.875 IN. DIA ONE END,0.562 IN. DIA OTHER END,THREAD SIZE 1.188-16 N 3A A
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS QQ-B-611 COND D,1.625 IN. O/A LG,0.875 IN. DIA ONE END,0.562 IN. DIA OTHER END,THREAD SIZE 1.188-16 N 3A A
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 68A18?
68A18 is a NUT,SPRING ADJUSTING.
What is the NSN for 68A18?
68A18 is cataloged in the U.S. Government catalog under NSN 5310-00-033-2190. 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.