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196B7818 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

196B7818: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OR STEEL COMP 304L OVERALL, hole_diameter: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN, outside_diameter: 1.330 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN, special_features: FINISH NO. 2B OR 4, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.020 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5310-01-119-8910, 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
196B7818
NSN: 5310-01-119-8910
FSC: 5310 — Nuts and Washers
CAGE: 05606 — GENERAL DYNAMICS-OTS, INC. DIV ORDNANCE AND TACTICAL SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OR STEEL COMP 304L OVERALL
hole_diameter1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
outside_diameter1.330 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
special_featuresFINISH NO. 2B OR 4
surface_treatmentPASSIVATE OVERALL
material_thickness0.020 INCHES NOMINAL IN
external_key_quantity2
external_straight_key_width0.355 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
overall_distance_including_keys1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-119-8910
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 196B7818 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DISTANCE INCLUDING KEYS: 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 1.330 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.020 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.355 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 2
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DISTANCE INCLUDING KEYS1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER1.330 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
MATERIAL THICKNESS0.020 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.355 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY2
SPECIAL FEATURESFINISH NO. 2B OR 4
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 304 OR STEEL COMP 304L OVERALL
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 1
10109341Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 196B7818?
196B7818 is a WASHER,KEY.
What parts can replace 196B7818?
There is 1 known substitute for 196B7818: 10109341. Substitute compatibility should be verified for your specific system.
What is the NSN for 196B7818?
196B7818 is cataloged in the U.S. Government catalog under NSN 5310-01-119-8910. 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.