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138511 — 138511

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

138511: 138511.

The 138511 is a the manufacturer industrial component. Key specifications include hole_diameter: 0.894 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN, outside_diameter: 1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN, style_designator: FLAT EXTERNAL TEETH, surface_treatment: CADMIUM OR ZINC AND CHROMATE OVERALL, material_thickness: 0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-013-8511, 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
MRO→ MRO_GENERAL→ 138511
NSN: 5310-00-013-8511
NIINs: 000138511, 009850904, 013073147
FSC: 5310 — Nuts and Washers
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
hole_diameter0.894 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN
outside_diameter1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN
style_designatorFLAT EXTERNAL TEETH
surface_treatmentCADMIUM OR ZINC AND CHROMATE OVERALL
material_thickness0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
NSN5310-00-013-8511
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 138511 · 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 EXTERNAL TEETH
•
OUTSIDE DIAMETER: 1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OR ZINC AND CHROMATE OVERALL
•
HOLE DIAMETER: 0.894 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT EXTERNAL TEETH
OUTSIDE DIAMETER1.380 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN
MATERIAL THICKNESS0.052 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OR ZINC AND CHROMATE OVERALL
HOLE DIAMETER0.894 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
MS35335-27Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MILW6986TYPEBReference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 138511?
138511 is a 138511. It is classified as a MRO (MRO_GENERAL).
What parts can replace 138511?
There are 2 known substitutes for 138511: MS35335-27, MILW6986TYPEB. Substitute compatibility should be verified for your specific system.
What is the NSN for 138511?
138511 is cataloged in the U.S. Government catalog under NSN 5310-00-013-8511. 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.