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NAS1149C0316B — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

NAS1149C0316B: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OVERALL, thickness: 0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN, hole_diameter: 0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN, overall_diameter: 0.433 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, surface_treatment: OXIDE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-200-6280, 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
NAS1149C0316B
NSN: 5310-01-200-6280
NIINs: 012006280, 014208865
FSC: 5310 — Nuts and Washers
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OVERALL
thickness0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
hole_diameter0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
overall_diameter0.433 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
surface_treatmentOXIDE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE AND 2 GRADE AND B CLASS
specification/standard_data80205-NAS1149 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
surface_treatment_document_and_classificationMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-200-6280
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS1149C0316B · 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 SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 0.433 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 2 GRADE AND B CLASS
•
SURFACE TREATMENT: OXIDE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER0.433 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
NONDEFINITIVE SPEC/STD DATAA TYPE AND 2 GRADE AND B CLASS
SURFACE TREATMENTOXIDE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
THICKNESS0.016 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
AN960XC10LLSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FF-W-92Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NAS1149C0316B?
NAS1149C0316B is a WASHER,FLAT.
What parts can replace NAS1149C0316B?
There are 2 known substitutes for NAS1149C0316B: AN960XC10LL, FF-W-92. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS1149C0316B?
NAS1149C0316B is cataloged in the U.S. Government catalog under NSN 5310-01-200-6280. 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.