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227991PC1 — RING ASSEMBLY,ELECTRICAL CONTACT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

227991PC1: RING ASSEMBLY,ELECTRICAL CONTACT.

RING ASSEMBLY,ELECTRICAL CONTACT. Key specifications include width: 0.188 INCHES NOMINAL IN, diameter: 4.750 INCHES NOMINAL IN, overall_height: 4.750 INCHES NOMINAL IN, overall_length: 7.000 INCHES NOMINAL IN, overall_diameter: 4.770 INCHES NOMINAL IN, special_markings: NUMBERED FROM 1 TO 17 TO IDENTIFY TERMINALS. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-552-6604, 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
227991PC1
NSN: 5977-00-552-6604
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
width0.188 INCHES NOMINAL IN
diameter4.750 INCHES NOMINAL IN
overall_height4.750 INCHES NOMINAL IN
overall_length7.000 INCHES NOMINAL IN
overall_diameter4.770 INCHES NOMINAL IN
special_markingsNUMBERED FROM 1 TO 17 TO IDENTIFY TERMINALS
surface_treatmentSILVER RING
fsc_application_dataSTABLE ELEMENT MK-5
contact_ring_quantity17
mounting_configuration3.438 IN. DIA CENTER MTG HOLE IN
NSN5977-00-552-6604
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING ASSEMBLY,ELECTRICAL CONTACT TITLE COMPONENT PN 227991PC1 MFR RING ASSEMBLY,ELECTRIC
KEY FEATURES
•
FSC APPLICATION DATA: STABLE ELEMENT MK-5
•
OVERALL DIAMETER: 4.770 INCHES NOMINAL IN
•
DIAMETER: 4.750 INCHES NOMINAL IN
•
SURFACE TREATMENT: SILVER RING
•
MOUNTING CONFIGURATION: 3.438 IN. DIA CENTER MTG HOLE IN
•
WIDTH: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT4.750 INCHES NOMINAL IN
FSC APPLICATION DATASTABLE ELEMENT MK-5
OVERALL DIAMETER4.770 INCHES NOMINAL IN
DIAMETER4.750 INCHES NOMINAL IN
OVERALL LENGTH7.000 INCHES NOMINAL IN
SURFACE TREATMENTSILVER RING
MOUNTING CONFIGURATION3.438 IN. DIA CENTER MTG HOLE IN
WIDTH0.188 INCHES NOMINAL IN
SPECIAL MARKINGSNUMBERED FROM 1 TO 17 TO IDENTIFY TERMINALS
CONTACT RING QUANTITY17
OTHER ITEMS IN FSC 5977 — Electrical Contact Brushes and Electrodes
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5977-00-001-8018 5977-00-001-8867 5977-00-002-9654 5977-00-003-0257 5977-00-003-0258 5977-00-003-0264 5977-00-003-1196 5977-00-003-1197
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is 227991PC1?
227991PC1 is a RING ASSEMBLY,ELECTRICAL CONTACT.
What is the NSN for 227991PC1?
227991PC1 is cataloged in the U.S. Government catalog under NSN 5977-00-552-6604. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.