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MS35338-143B — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS35338-143B: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include hole_diameter: 0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN, hardness_rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM, outside_diameter: 0.873 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: OXIDE FILM OVERALL, material_thickness: 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-163-6567, 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
MS35338-143B
NSN: 5310-00-163-6567
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
hole_diameter0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
hardness_rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
outside_diameter0.873 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentOXIDE FILM OVERALL
material_thickness0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
nondefinitive_spec/std_data2 STYLE AND C CLASS
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationMIL-C-13924,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-163-6567
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS35338-143B · 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,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.873 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 2 STYLE AND C CLASS
•
SURFACE TREATMENT: OXIDE FILM OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.873 INCHES MAXIMUM IN
MATERIAL THICKNESS0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 STYLE AND C CLASS
SURFACE TREATMENTOXIDE FILM OVERALL
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 303SE OR STEEL COMP 385 OVERALL
HOLE DIAMETER0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
2003114Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FFW84Reference document
Same NSN cross-reference
Reference document — Identification reference
AA-55610-143Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS35338-143B?
MS35338-143B is a WASHER,LOCK.
What parts can replace MS35338-143B?
There are 3 known substitutes for MS35338-143B: 2003114, FFW84, AA-55610-143. Substitute compatibility should be verified for your specific system.
What is the NSN for MS35338-143B?
MS35338-143B is cataloged in the U.S. Government catalog under NSN 5310-00-163-6567. This indicates validated use in U.S. government and defense supply chains.
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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.