Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: ALUMINUM, drive_type: SERRATED, design_type: THREADED, thread_class: 2A A, overall_diameter: 0.875 INCHES MAXIMUM IN, features_provided: BEVELED SEAT AND SHOULDER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-433-3253, 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
28991-3
NSN:5340-00-433-3253 FSC:5340 CAGE:11599 — TRIUMPH ENGINE CONTROL SYSTEMS LLC (USA)
SPECIFICATIONS
material
ALUMINUM
drive_type
SERRATED
design_type
THREADED
thread_class
2A A
overall_diameter
0.875 INCHES MAXIMUM IN
features_provided
BEVELED SEAT AND SHOULDER
surface_treatment
ANODIZE
nondefinitive_spec/std_data
1 TYPE AND 4 SIZE
thread_size_and_series/type_designator
7/16-20 UNF
NSN
5340-00-433-3253
COMPONENT DIAGRAM
KEY FEATURES
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 4 SIZE
•
THREAD CLASS: 2A A
•
OVERALL DIAMETER: 0.875 INCHES MAXIMUM IN
•
DRIVE TYPE: SERRATED
•
MATERIAL: ALUMINUM
•
SURFACE TREATMENT: ANODIZE
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 7/16-20 UNF
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FREQUENTLY ASKED QUESTIONS
What is 28991-3?
28991-3 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace 28991-3?
There are 26 known substitutes for 28991-3: SP4, 5105-2900, 5340PL1879468 and 23 more. Substitute compatibility should be verified for your specific system.
Is 28991-3 still available?
28991-3 is currently cancelled.
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