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1802768 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1802768: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include special_features: 5PK 135-36 PORTRA 400NC 5775/US, precious_material: SILVER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-068-8403, 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
1802768
NSN: 5310-01-068-8403
NIINs: 010688403, 014596125
FSC: 5310 — Nuts and Washers
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
special_features5PK 135-36 PORTRA 400NC 5775/US
precious_materialSILVER
NSN5310-01-068-8403
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1802768 · 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 CL A FED SPEC ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.355 INCHES MAXIMUM0.355 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.078 INCHES NOMINAL0.078 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY AND COPPER ALLOY OVERALL
•
HOLE DIAMETER: 0.255 INCHES NOMINAL0.255 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CL A FED SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.355 INCHES MAXIMUM0.355 INCHES MAXIMUM IN
MATERIAL THICKNESS0.078 INCHES NOMINAL0.078 INCHES NOMINAL IN
MATERIALNICKEL ALLOY AND COPPER ALLOY OVERALL
HOLE DIAMETER0.255 INCHES NOMINAL0.255 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1802768?
1802768 is a WASHER,LOCK.
What is the NSN for 1802768?
1802768 is cataloged in the U.S. Government catalog under NSN 5310-01-068-8403. 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.