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CO1663-028-3B — PUSH ON NUT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

CO1663-028-3B: PUSH ON NUT.

The PUSH ON NUT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_width: 0.312 INCHES NOMINAL IN, nut_length: 0.937 INCHES NOMINAL IN, surface_treatment: ZINC AND DICHROMATE OVERALL, material_thickness: 0.022 INCHES NOMINAL IN, mating_member_diameter_accommodated: 0.156 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-596-8182, 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
CO1663-028-3B
NSN: 5310-00-596-8182
FSC: 5310 — Nuts and Washers
CAGE: 78553 — TINNERMAN PALNUT ENGINEERED PRODUCTS, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_width0.312 INCHES NOMINAL IN
nut_length0.937 INCHES NOMINAL IN
surface_treatmentZINC AND DICHROMATE OVERALL
material_thickness0.022 INCHES NOMINAL IN
mating_member_diameter_accommodated0.156 INCHES NOMINAL IN
NSN5310-00-596-8182
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: CO1663-028-3B · 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
•
NUT WIDTH: 0.312 INCHES NOMINAL IN
•
NUT LENGTH: 0.937 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.022 INCHES NOMINAL IN
•
MATING MEMBER DIAMETER ACCOMMODATED: 0.156 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC AND DICHROMATE OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
NUT WIDTH0.312 INCHES NOMINAL IN
NUT LENGTH0.937 INCHES NOMINAL IN
MATERIAL THICKNESS0.022 INCHES NOMINAL IN
MATING MEMBER DIAMETER ACCOMMODATED0.156 INCHES NOMINAL IN
SURFACE TREATMENTZINC AND DICHROMATE OVERALL
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
A1663-028-1DReference document
Same NSN cross-reference
Reference document — Secondary reference
A1663-028-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
GSS10A028-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 CO1663-028-3B?
CO1663-028-3B is a PUSH ON NUT.
What parts can replace CO1663-028-3B?
There are 3 known substitutes for CO1663-028-3B: A1663-028-1D, A1663-028-3, GSS10A028-3. Substitute compatibility should be verified for your specific system.
What is the NSN for CO1663-028-3B?
CO1663-028-3B is cataloged in the U.S. Government catalog under NSN 5310-00-596-8182. 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.