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PartsTable / COMPONENT / MS51923-157
MS51923-157 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.094 INCHES NOMINAL IN, material: STEEL COMP 302 OVERALL, overall_length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, style_designator: COILED, expanded_diameter: 0.099 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-011-2303, 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
MS51923-157
NSN: 5315-01-011-2303
FSC: 5315
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
diameter0.094 INCHES NOMINAL IN
materialSTEEL COMP 302 OVERALL
overall_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
style_designatorCOILED
expanded_diameter0.099 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-011-2303
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS51923-157 · 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
•
EXPANDED DIAMETER: 0.099 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 302 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: COILED
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
DIAMETER: 0.094 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
EXPANDED DIAMETER0.099 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
MATERIALSTEEL COMP 302 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORCOILED
SURFACE TREATMENTPASSIVATE OVERALL
DIAMETER0.094 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
120160Interchangeable
interchangeable cross-reference
interchangeable
C59Interchangeable
interchangeable cross-reference
interchangeable
UV-74Interchangeable
interchangeable cross-reference
interchangeable
M-62Interchangeable
interchangeable cross-reference
interchangeable
MIL-A-3920Interchangeable
interchangeable cross-reference
interchangeable
R3458Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51923-157?
MS51923-157 is a PIN,SPRING.
What parts can replace MS51923-157?
There are 18 known substitutes for MS51923-157: 120160, C59, UV-74 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51923-157?
MS51923-157 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-011-2303. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026