PartsTable
Technical Data Sheet
PartsTable / MRO / 501243
501243 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include material: TITANIUM WASHER, body_style: W/O MTG FACILITIES, RADIAL TERMINALS, ring_style: INTERNAL, body_length: 0.375 INCHES MAXIMUM IN, barrel_style: FUNNEL FLANGE STRAIGHT TYPE, flange_style: FLANGE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-754-1896, 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→ 501243
NSN: 5325-00-754-1896
FSC: 5325
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialTITANIUM WASHER
body_styleW/O MTG FACILITIES, RADIAL TERMINALS
ring_styleINTERNAL
body_length0.375 INCHES MAXIMUM IN
barrel_styleFUNNEL FLANGE STRAIGHT TYPE
flange_styleFLANGE
usage_designINTERNAL
washer_styleFLAT
body_diameter0.825 INCHES MAXIMUM IN
major_thickness0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
terminal_length1.000 INCHES MINIMUM IN
outside_diameter2.029 INCHES MINIMUM AND 2.089 INCHES MAXIMUM IN
NSN5325-00-754-1896
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 501243 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
RING STYLE: INTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: STEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1090
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1085 OR 1090 FED STD SINGLE MATERIAL RESPONSE
•
SURFACE TREATMENT: CADMIUM AND CHROMATE
•
MAJOR THICKNESS: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL HARDNESS RATING: 47.0 ROCKWELL C MINIMUM AND 52.0 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)
RING STYLEINTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIALSTEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1090
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1085 OR 1090 FED STD SINGLE MATERIAL RESPONSE
SURFACE TREATMENTCADMIUM AND CHROMATE
MAJOR THICKNESS0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIAL HARDNESS RATING47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
OUTSIDE DIAMETER2.029 INCHES MINIMUM AND 2.089 INCHES MAXIMUM IN
USAGE DESIGNINTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
S280-1147P122Interchangeable
interchangeable cross-reference
interchangeable
306-223Interchangeable
interchangeable cross-reference
interchangeable
99007865Interchangeable
interchangeable cross-reference
interchangeable
343B17015Interchangeable
interchangeable cross-reference
interchangeable
B1-9Interchangeable
interchangeable cross-reference
interchangeable
5054Y5R102PAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501243?
501243 is a CAPACITOR,FIXED,CERAMIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 501243?
There are 20 known substitutes for 501243: S280-1147P122, 306-223, 99007865 and 17 more. Substitute compatibility should be verified for your specific system.
Is 501243 still available?
501243 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