Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE, design_type: SOLID, end_diameter: 1.7770 INCHES MINIMUM AND 1.7780 INCHES MAXIMUM IN, bore_diameter: 1.2500 INCHES NOMINAL IN, overall_height: 4.1880 INCHES NOMINAL IN, style_designator: SEAT. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System under NSN 5340-01-067-9044, 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
77M69-20 ITEM 22
NSN:5340-01-067-9044 FSC:5340 CAGE:96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
material
PLASTIC POLYTETRAFLUOROETHYLENE
design_type
SOLID
end_diameter
1.7770 INCHES MINIMUM AND 1.7780 INCHES MAXIMUM IN
bore_diameter
1.2500 INCHES NOMINAL IN
overall_height
4.1880 INCHES NOMINAL IN
style_designator
SEAT
first_step_length
0.1880 INCHES NOMINAL IN
first_step_diameter
3.0500 INCHES MINIMUM AND 3.0540 INCHES MAXIMUM IN
second_end_diameter
1.7770 INCHES MINIMUM AND 1.7780 INCHES MAXIMUM IN
distance_from_end_to_first_step
2.0000 INCHES NOMINAL IN
material_document_and_classification
MIL-P-19468 MIL SPEC SINGLE MATERIAL RESPONSE
NSN
5340-01-067-9044
COMPONENT DIAGRAM
KEY FEATURES
•
FIRST STEP DIAMETER: 3.0500 INCHES MINIMUM AND 3.0540 INCHES MAXIMUM IN
•
END DIAMETER: 1.7770 INCHES MINIMUM AND 1.7780 INCHES MAXIMUM IN
•
SECOND END DIAMETER: 1.7770 INCHES MINIMUM AND 1.7780 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 2.0000 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE
•
FIRST STEP LENGTH: 0.1880 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-19468 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
FIRST STEP DIAMETER
3.0500 INCHES MINIMUM AND 3.0540 INCHES MAXIMUM IN
END DIAMETER
1.7770 INCHES MINIMUM AND 1.7780 INCHES MAXIMUM IN
SECOND END DIAMETER
1.7770 INCHES MINIMUM AND 1.7780 INCHES MAXIMUM IN
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FREQUENTLY ASKED QUESTIONS
What is 77M69-20 ITEM 22?
77M69-20 ITEM 22 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 77M69-20 ITEM 22?
There are 6 known substitutes for 77M69-20 ITEM 22: HP94732, 94732, D12552-2 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77M69-20 ITEM 22?
77M69-20 ITEM 22 is cataloged in the Federal Logistics Information System under NSN 5340-01-067-9044. This indicates validated use in U.S. government and defense supply chains.
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