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904003 ✓ 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 CRYSTAL UNIT,QUARTZ is a the manufacturer industrial component. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: GLASS COVER HOLDER, body_width: 0.402 INCHES MAXIMUM IN, overall_width: 0.435 INCHES MAXIMUM IN, body_thickness: 0.150 INCHES MAXIMUM IN, conductor_form: STRANDED ALL CONDUCTORS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-010-3390, 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
904003
NSN: 5315-00-010-3390
FSC: 5315
CAGE: 92392 — ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialGLASS COVER HOLDER
body_width0.402 INCHES MAXIMUM IN
overall_width0.435 INCHES MAXIMUM IN
body_thickness0.150 INCHES MAXIMUM IN
conductor_formSTRANDED ALL CONDUCTORS
overall_length0.530 INCHES MAXIMUM IN
terminal_length1.500 INCHES MINIMUM IN
special_featuresDISPOSABLE, MEDIUM UP
style_designatorOVAL BODY, PIN TERMINALS
termination_typeCONNECTOR PLUG BOTH ENDS ALL CONDUCTORS
underloop_length2.250 INCHES NOMINAL IN
NSN5315-00-010-3390
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 904003 · 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
•
UNDERLOOP LENGTH: 2.250 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
DIAMETER: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
UNDERLOOP LENGTH2.250 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
DIAMETER0.125 INCHES NOMINAL IN
STYLE DESIGNATORSTANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
85442-01Interchangeable
interchangeable cross-reference
interchangeable
85442Interchangeable
interchangeable cross-reference
interchangeable
DM54150D883BInterchangeable
interchangeable cross-reference
interchangeable
DEC74150Interchangeable
interchangeable cross-reference
interchangeable
SN74150N-10Interchangeable
interchangeable cross-reference
interchangeable
32371-5001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 904003?
904003 is a CRYSTAL UNIT,QUARTZ.
What parts can replace 904003?
There are 20 known substitutes for 904003: 85442-01, 85442, DM54150D883B and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 904003?
904003 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-010-3390. 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