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PartsTable / COMPONENT / SMB157144
SMB157144 ✓ 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,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.031 INCHES NOMINAL IN, diameter: 0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN, head_style: FLAT, style_designator: STRAIGHT, features_provided: CASEHARDENED, pin_head_diameter: 0.218 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-392-8291, 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
SMB157144
NSN: 5315-00-392-8291
FSC: 5315
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
height0.031 INCHES NOMINAL IN
diameter0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
head_styleFLAT
style_designatorSTRAIGHT
features_providedCASEHARDENED
pin_head_diameter0.218 INCHES NOMINAL IN
surface_treatmentPHOSPHATE OVERALL
under_head_length0.265 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
NSN5315-00-392-8291
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SMB157144 · 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: PHOSPHATE OVERALL
•
PIN HEAD DIAMETER: 0.218 INCHES NOMINAL IN
•
UNDER HEAD LENGTH: 0.265 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
•
DIAMETER: 0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
•
HEAD STYLE: FLAT
•
FEATURES PROVIDED: CASEHARDENED
•
STYLE DESIGNATOR: STRAIGHT
•
HEIGHT: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPHOSPHATE OVERALL
PIN HEAD DIAMETER0.218 INCHES NOMINAL IN
UNDER HEAD LENGTH0.265 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
DIAMETER0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
HEAD STYLEFLAT
FEATURES PROVIDEDCASEHARDENED
STYLE DESIGNATORSTRAIGHT
HEIGHT0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
667279Interchangeable
interchangeable cross-reference
interchangeable
2213 4524-002Interchangeable
interchangeable cross-reference
interchangeable
527722Interchangeable
interchangeable cross-reference
interchangeable
52404Interchangeable
interchangeable cross-reference
interchangeable
403293-04Interchangeable
interchangeable cross-reference
interchangeable
HD524-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SMB157144?
SMB157144 is a PIN,STRAIGHT,HEADED.
What parts can replace SMB157144?
There are 9 known substitutes for SMB157144: 667279, 2213 4524-002, 527722 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SMB157144?
SMB157144 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-392-8291. 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