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HRS-4 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The HRS-4 is a the manufacturer industrial component. Key specifications include color: BLACK, skirt_design: NONDETACHABLE, overall_depth: 0.500 INCHES NOMINAL IN, inside_diameter: 0.250 INCHES NOMINAL IN, outside_diameter: 0.875 INCHES MAXIMUM IN, screw_drive_type: SLOT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-680-8443, 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
HRS-4
NSN: 5355-00-680-8443
FSC: 5355
CAGE: 42498 — DAR ELECTRONICS INC DBA NATIONAL RADIO CO (USA)
SPECIFICATIONS
colorBLACK
skirt_designNONDETACHABLE
overall_depth0.500 INCHES NOMINAL IN
inside_diameter0.250 INCHES NOMINAL IN
outside_diameter0.875 INCHES MAXIMUM IN
screw_drive_typeSLOT
style_designatorROUND
attachment_methodSETSCREWS
overall_thickness0.750 INCHES NOMINAL IN
reference_markingSINGLE LINE
setscrew_hole_quantity1
shaft_accommodation_styleROUND
NSN5355-00-680-8443
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HRS-4 TITLE COMPONENT PN HRS-4 MFR HRS-4
KEY FEATURES
•
STYLE DESIGNATOR: ROUND
•
REFERENCE MARKING: SINGLE LINE
•
SHAFT ACCOMMODATION STYLE: ROUND
•
COLOR: BLACK
•
SKIRT DESIGN: NONDETACHABLE
•
SETSCREW HOLE QUANTITY: 1
•
OVERALL THICKNESS: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORROUND
REFERENCE MARKINGSINGLE LINE
SHAFT ACCOMMODATION STYLEROUND
COLORBLACK
SKIRT DESIGNNONDETACHABLE
OVERALL DEPTH0.500 INCHES NOMINAL IN
SETSCREW HOLE QUANTITY1
OVERALL THICKNESS0.750 INCHES NOMINAL IN
SCREW DRIVE TYPESLOT
OUTSIDE DIAMETER0.875 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
HR5-4Interchangeable
interchangeable cross-reference
interchangeable
3510036-017Interchangeable
interchangeable cross-reference
interchangeable
530020Interchangeable
interchangeable cross-reference
interchangeable
171-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HRS-4?
HRS-4 is a HRS-4.
What parts can replace HRS-4?
There are 4 known substitutes for HRS-4: HR5-4, 3510036-017, 530020 and 1 more. Substitute compatibility should be verified for your specific system.
Is HRS-4 still available?
HRS-4 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