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Technical Data Sheet
PartsTable / MRO / 171587
171587 ✓ 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,PLASTIC DIELECTR. Key specifications include material: PLASTIC CASE, body_style: W/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES, body_width: 0.200 INCHES NOMINAL IN, head_style: ROUND, body_height: 0.330 INCHES NOMINAL IN, body_length: 3.500 INCHES MINIMUM AND 3.688 INCHES MAXIMUM 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 5305-00-017-1587, 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→ 171587
NSN: 5305-00-017-1587
FSC: 5305
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES
body_width0.200 INCHES NOMINAL IN
head_styleROUND
body_height0.330 INCHES NOMINAL IN
body_length3.500 INCHES MINIMUM AND 3.688 INCHES MAXIMUM IN
head_height0.139 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN
body_materialMETAL
head_diameter0.382 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN
inclosure_typeHERMETICALLY SEALED
overall_length5.594 INCHES NOMINAL IN
fastener_length0.375 INCHES NOMINAL IN
NSN5305-00-017-1587
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 171587 · 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
•
HEAD STYLE: ROUND
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
FASTENER LENGTH: 0.375 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
HEAD HEIGHT: 0.139 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.216 INCHES IN
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)
HEAD STYLEROUND
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
FASTENER LENGTH0.375 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MATERIALSTEEL OVERALL
HEAD HEIGHT0.139 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN
NONMACHINE NOMINAL THREAD DIAMETER0.216 INCHES IN
END ITEM IDENTIFICATIONARMORED MULTI-PURPOSE VEHICLE (AMPV)
NONMACHINE THREAD STYLETHRU SLOT (TYPE D)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
FFS107TYPECSSTYLE1SInterchangeable
interchangeable cross-reference
interchangeable
66843Interchangeable
interchangeable cross-reference
interchangeable
171354Interchangeable
interchangeable cross-reference
interchangeable
S3523ACInterchangeable
interchangeable cross-reference
interchangeable
171356Interchangeable
interchangeable cross-reference
interchangeable
171575Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 171587?
171587 is a CAPACITOR,FIXED,PLASTIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 171587?
There are 12 known substitutes for 171587: FFS107TYPECSSTYLE1S, 66843, 171354 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 171587?
171587 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-017-1587. 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