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Technical Data Sheet
PartsTable / COMPONENT / J108P53B
J108P53B ✓ 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,TAPERED,PLAIN is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, surface_finish: 63.0 MICROINCHES OUTSIDE DIAMETER, first_end_style: SQUARE W/THRU HOLE, surface_treatment: CHROMATE OVERALL, first_end_location: BOTH ENDS, large_end_diameter: 0.1786 INCHES MINIMUM AND 0.1794 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-103-1895, 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
J108P53B
NSN: 5315-01-103-1895
FSC: 5315
CAGE: 92555 — THE LEE CO DBA THE LEE CO (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
surface_finish63.0 MICROINCHES OUTSIDE DIAMETER
first_end_styleSQUARE W/THRU HOLE
surface_treatmentCHROMATE OVERALL
first_end_locationBOTH ENDS
large_end_diameter0.1786 INCHES MINIMUM AND 0.1794 INCHES MAXIMUM IN
pin_overall_length0.140 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-103-1895
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: J108P53B · 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
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
LARGE END DIAMETER: 0.1786 INCHES MINIMUM AND 0.1794 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
PIN OVERALL LENGTH: 0.140 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
•
SURFACE FINISH: 63.0 MICROINCHES OUTSIDE DIAMETER
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: ALUMINUM ALLOY 2024 OVERALL
•
SURFACE TREATMENT: CHROMATE OVERALL
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
LARGE END DIAMETER0.1786 INCHES MINIMUM AND 0.1794 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
PIN OVERALL LENGTH0.140 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
SURFACE TREATMENTCHROMATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
FIRST END STYLESQUARE W/THRU HOLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
21840-1Interchangeable
interchangeable cross-reference
interchangeable
480-B-4Interchangeable
interchangeable cross-reference
interchangeable
140-1784-2-05Interchangeable
interchangeable cross-reference
interchangeable
HS4100A2180Interchangeable
interchangeable cross-reference
interchangeable
42312D122Interchangeable
interchangeable cross-reference
interchangeable
AS3123-05Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J108P53B?
J108P53B is a PIN,TAPERED,PLAIN.
What parts can replace J108P53B?
There are 9 known substitutes for J108P53B: 21840-1, 480-B-4, 140-1784-2-05 and 6 more. Substitute compatibility should be verified for your specific system.
Is J108P53B still available?
J108P53B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026