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188138 — BEARING,WASHER,THRUST

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

188138: BEARING,WASHER,THRUST.

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN, outside_diameter: 0.370 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN, style_designator: FLAT INTERNAL TEETH, surface_treatment: NICKEL OVERALL, material_thickness: 0.022 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-193-7486, 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
188138
NSN: 5310-00-193-7486
NIINs: 001937486, 012992873
FSC: 5310 — Nuts and Washers
CAGE: 66503 — WOODWARD, INC. DIV FUEL SYSTEMS AND CONTROLS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
outside_diameter0.370 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
style_designatorFLAT INTERNAL TEETH
surface_treatmentNICKEL OVERALL
material_thickness0.022 INCHES NOMINAL IN
NSN5310-00-193-7486
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 188138 · 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: FLAT INTERNAL TEETH
•
OUTSIDE DIAMETER: 0.370 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.022 INCHES NOMINAL IN
•
SURFACE TREATMENT: NICKEL OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT INTERNAL TEETH
OUTSIDE DIAMETER0.370 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
MATERIAL THICKNESS0.022 INCHES NOMINAL IN
SURFACE TREATMENTNICKEL OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.195 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 8
28150Reference document
Same NSN cross-reference
Reference document — Secondary reference
A02157-121Reference document
Same NSN cross-reference
Reference document — Secondary reference
10Reference document
Same NSN cross-reference
Reference document — Secondary reference
A520806Reference document
Same NSN cross-reference
Reference document — Secondary reference
WLT1001-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
98642Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 188138?
188138 is a BEARING,WASHER,THRUST.
What parts can replace 188138?
There are 8 known substitutes for 188138: 28150, A02157-121, 10 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 188138?
188138 is cataloged in the U.S. Government catalog under NSN 5310-00-193-7486. 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.