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891040-2 — Technical Data Sheet

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— · 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 891040-2 is a the manufacturer industrial component. Key specifications include shank_style: STRAIGHT, style_designator: OCTAGON, attachment_method: STUD, overall_thickness: 2.219 INCHES NOMINAL IN, width_across_flats: 0.875 INCHES MAXIMUM IN, nominal_thread_size: 0.250 INCHES STUD IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5355-00-049-8576, 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
891040-2
NSN: 5355-00-049-8576
FSC: 5355
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
shank_styleSTRAIGHT
style_designatorOCTAGON
attachment_methodSTUD
overall_thickness2.219 INCHES NOMINAL IN
width_across_flats0.875 INCHES MAXIMUM IN
nominal_thread_size0.250 INCHES STUD IN
thread_quantity_per_inch20 STUD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) STUD
gripping_surface_conditionGRIP AID
NSN5355-00-049-8576
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 891040-2 TITLE COMPONENT PN 891040-2 MFR 891040-2
KEY FEATURES
•
SHANK STYLE: STRAIGHT
•
WIDTH ACROSS FLATS: 0.875 INCHES MAXIMUM IN
•
OVERALL THICKNESS: 2.219 INCHES NOMINAL IN
•
ATTACHMENT METHOD: STUD
•
STYLE DESIGNATOR: OCTAGON
•
NOMINAL THREAD SIZE: 0.250 INCHES STUD IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) STUD
•
THREAD QUANTITY PER INCH: 20 STUD
TECHNICAL CHARACTERISTICS
SHANK STYLESTRAIGHT
WIDTH ACROSS FLATS0.875 INCHES MAXIMUM IN
OVERALL THICKNESS2.219 INCHES NOMINAL IN
ATTACHMENT METHODSTUD
STYLE DESIGNATOROCTAGON
NOMINAL THREAD SIZE0.250 INCHES STUD IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) STUD
THREAD QUANTITY PER INCH20 STUD
COLORGRAY/GREY
GRIPPING SURFACE CONDITIONGRIP AID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
500023-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1123InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
60D7667WInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
89104-2InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
891040ISSUE2InterchangeableGOVERNMENT REGISTRY
Knob
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 891040-2?
891040-2 is a 891040-2.
What parts can replace 891040-2?
There are 5 known substitutes for 891040-2: 500023-1, 1123, 60D7667W and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 891040-2?
891040-2 is cataloged in the Federal Logistics Information System under NSN 5355-00-049-8576. 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: September 2026