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912663 — WASHER,SADDLE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

912663: WASHER,SADDLE.

The WASHER,SADDLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.537 INCHES NOMINAL IN, overall_height: 0.238 INCHES NOMINAL IN, outside_diameter: 1.563 INCHES NOMINAL IN, style_designator: SADDLE, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-753-8137, 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
912663
NSN: 5310-00-753-8137
FSC: 5310 — Nuts and Washers
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.537 INCHES NOMINAL IN
overall_height0.238 INCHES NOMINAL IN
outside_diameter1.563 INCHES NOMINAL IN
style_designatorSADDLE
surface_treatmentCADMIUM OVERALL
thickness_at_bolt_hole0.118 INCHES NOMINAL IN
NSN5310-00-753-8137
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 912663 · 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: SADDLE
•
OUTSIDE DIAMETER: 1.563 INCHES NOMINAL IN
•
THICKNESS AT BOLT HOLE: 0.118 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.537 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.238 INCHES NOMINAL IN
STYLE DESIGNATORSADDLE
OUTSIDE DIAMETER1.563 INCHES NOMINAL IN
THICKNESS AT BOLT HOLE0.118 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.537 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
331079Reference document
Same NSN cross-reference
Reference document — Secondary reference
422824Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 912663?
912663 is a WASHER,SADDLE.
What parts can replace 912663?
There are 2 known substitutes for 912663: 331079, 422824. Substitute compatibility should be verified for your specific system.
What is the NSN for 912663?
912663 is cataloged in the U.S. Government catalog under NSN 5310-00-753-8137. 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.