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Technical Data Sheet
PartsTable / MRO / 103221
103221 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

CAPACITOR,FIXED,PLASTIC DIELECTR. Key specifications include material: STEEL CASE, body_style: BUSHING/HOLE MOUNTED, body_width: 0.688 INCHES NOMINAL IN, scale_name: POUNDS PER SQUARE INCH, body_height: 0.984 INCHES NOMINAL IN, body_length: 1.925 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-261-7340, 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
MRO→ MRO_GENERAL→ 103221
NSN: 5310-00-261-7340
FSC: 5310
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL CASE
body_styleBUSHING/HOLE MOUNTED
body_width0.688 INCHES NOMINAL IN
scale_namePOUNDS PER SQUARE INCH
body_height0.984 INCHES NOMINAL IN
body_length1.925 INCHES NOMINAL IN
design_typeTAPERED SINGLE ANTENNA ELEMENT
display_typeDIAL
hole_diameter0.377 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
overall_depth2.13 INCHES NOMINAL IN
overall_width0.688 INCHES NOMINAL IN
pointer_colorBLACK
NSN5310-00-261-7340
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 103221 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 0.680 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.377 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.680 INCHES MAXIMUM IN
MATERIAL THICKNESS0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
HOLE DIAMETER0.377 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
120382Interchangeable
interchangeable cross-reference
interchangeable
25704-281340-09-0Interchangeable
interchangeable cross-reference
interchangeable
2N2979Interchangeable
interchangeable cross-reference
interchangeable
0.5M7.5AZ2Interchangeable
interchangeable cross-reference
interchangeable
HP09476Interchangeable
interchangeable cross-reference
interchangeable
C291-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 103221?
103221 is a CAPACITOR,FIXED,PLASTIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 103221?
There are 30 known substitutes for 103221: 120382, 25704-281340-09-0, 2N2979 and 27 more. Substitute compatibility should be verified for your specific system.
Is 103221 still available?
103221 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