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309791 ✓ 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 BLOCK ASSEMBLY,BRUSH is a the manufacturer industrial component. Key specifications include construction: ONE-PIECE, hardness_rating: 38.0 ROCKWELL C MINIMUM, outside_diameter: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 0.094 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OR OXIDE FILM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-032-4788, 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
309791
NSN: 5977-00-032-4788
FSC: 5977
CAGE: 88818 — KEARFOTT CORPORATION DIV GUIDANCE AND NAVIGATION DIVISION (USA)
SPECIFICATIONS
constructionONE-PIECE
hardness_rating38.0 ROCKWELL C MINIMUM
outside_diameter0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter0.094 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OR OXIDE FILM
general_characteristics_item_descriptionONE EA FSCM 61349 BRUSH HOLDER ASSY P/N AB-943-A,BRUSH HOLDER ASSY P/N AB-943,BRUSH BLOCK P/N BB-932
NSN5977-00-032-4788
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BLOCK ASSEMBLY,BRUSH TITLE COMPONENT PN 309791 MFR BLOCK ASSEMBLY,BRUSH
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: ONE EA FSCM 61349 BRUSH HOLDER ASSY P/N AB-943-A,BRUSH HOLDER ASSY P/N AB-943,BRUSH BLOCK P/N BB-932
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONONE EA FSCM 61349 BRUSH HOLDER ASSY P/N AB-943-A,BRUSH HOLDER ASSY P/N AB-943,BRUSH BLOCK P/N BB-932
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
309791Interchangeable
interchangeable cross-reference
interchangeable
30979Interchangeable
interchangeable cross-reference
interchangeable
AB-980Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 309791?
309791 is a BLOCK ASSEMBLY,BRUSH.
What parts can replace 309791?
There are 3 known substitutes for 309791: 309791, 30979, AB-980. Substitute compatibility should be verified for your specific system.
What is the NSN for 309791?
309791 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-032-4788. 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