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NAS1149C1165B — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

NAS1149C1165B: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thickness: 0.016 INCHES NOMINAL IN, hole_diameter: 1.630 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN, overall_diameter: 2.370 INCHES MINIMUM AND 2.395 INCHES MAXIMUM IN, surface_treatment: OXIDE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-527-5173, 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
NAS1149C1165B
NSN: 5310-01-527-5173
FSC: 5310 — Nuts and Washers
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thickness0.016 INCHES NOMINAL IN
hole_diameter1.630 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN
overall_diameter2.370 INCHES MINIMUM AND 2.395 INCHES MAXIMUM IN
surface_treatmentOXIDE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
specification/standard_data18876-NAS1149 MANUFACTURERS STANDARD
material_document_and_classificationMIL-S-5059 MIL SPEC ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationMIL-C-13924 MIL SPEC ALL TREATMENT RESPONSES OVERALL
NSN5310-01-527-5173
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS1149C1165B · 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: MIL-C-13924 MIL SPEC ALL TREATMENT RESPONSES OVERALL
•
OVERALL DIAMETER: 2.370 INCHES MINIMUM AND 2.395 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SPECIFICATION/STANDARD DATA: 18876-NAS1149 MANUFACTURERS STANDARD
•
COLOR: BLACK OVERALL
•
SURFACE TREATMENT: OXIDE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL SPEC ALL TREATMENT RESPONSES OVERALL
OVERALL DIAMETER2.370 INCHES MINIMUM AND 2.395 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIFICATION/STANDARD DATA18876-NAS1149 MANUFACTURERS STANDARD
COLORBLACK OVERALL
SURFACE TREATMENTOXIDE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL CORROSION RESISTING OVERALL
CENTER HOLE SHAPE STYLEROUND
SUBSTITUTES & CROSS-REFERENCES 1
AN960XC11Reference 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 NAS1149C1165B?
NAS1149C1165B is a WASHER,FLAT.
What parts can replace NAS1149C1165B?
There is 1 known substitute for NAS1149C1165B: AN960XC11. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS1149C1165B?
NAS1149C1165B is cataloged in the U.S. Government catalog under NSN 5310-01-527-5173. 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.