Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
COVER,ENGINE POPPET VALVE ROCKER. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, inclosure_type: ENCASED, drive_shaft_type: MACHINE KEYWAY, operation_method: POWERED, discharge_pressure: 500.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES, drive_shaft_length: 1.562 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-708-7770, 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→12-1026
NSN:5331-00-708-7770 FSC:5331 — O-RING CAGE:13520 — DONALDSON COMPANY, INC. (USA)
SPECIFICATIONS
material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
inclosure_type
ENCASED
drive_shaft_type
MACHINE KEYWAY
operation_method
POWERED
discharge_pressure
500.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
drive_shaft_length
1.562 INCHES NOMINAL IN
rotary_pump_design
GEAR
nominal_thread_size
0.138 INCHES IN
center_hole_diameter
1.724 INCHES MINIMUM AND 1.744 INCHES MAXIMUM IN
drive_connection_type
CLOSE COUPLED
cross-sectional_height
0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
intake_connection_type
THREADED INTERNAL
NSN
5331-00-708-7770
COMPONENT DIAGRAM
KEY FEATURES
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 1.724 INCHES MINIMUM AND 1.744 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
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FREQUENTLY ASKED QUESTIONS
What is 12-1026?
12-1026 is a COVER,ENGINE POPPET VALVE ROCKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 12-1026?
There are 13 known substitutes for 12-1026: 1512CSP5, 171026, VP4871 and 10 more. Substitute compatibility should be verified for your specific system.
Is 12-1026 still available?
12-1026 is currently cancelled.
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