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Technical Data Sheet
55177 ✓ Verified by PartsTable
Mobiparts · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,PRE. Key specifications include material: GRAPHITE OVERALL, bore_diameter: 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN, style_designator: WITHOUT INSERT OR LINER, features_provided: HERMETICALLY SEALED CASE, inner_member_width: 0.6200 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN, outer_member_width: 0.5000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-514-6719, 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
55177
NSN: 5340-00-514-6719
FSC: 5340
CAGE: 94833 — KECO INDUSTRIES, INC. (USA)
SPECIFICATIONS
materialGRAPHITE OVERALL
bore_diameter0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
style_designatorWITHOUT INSERT OR LINER
features_providedHERMETICALLY SEALED CASE
inner_member_width0.6200 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
outer_member_width0.5000 INCHES NOMINAL IN
end_item_identification26 FT TANB, SICR 1413 FT
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
nondefinitive_spec/std_data1N4385 TYPE
outer_member_outside_diameter1.1870 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN
thread_size_and_series/type_designator3/8-18 NPT
part_name_assigned_by_controlling_agencyPACKING SET
NSN5340-00-514-6719
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55177 MFR: Mobiparts ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 3/8-18 NPT
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SIZE AND SERIES/TYPE DESIGNATOR3/8-18 NPT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
GB14B10Interchangeable
interchangeable cross-reference
interchangeable
RSPG-10AInterchangeable
interchangeable cross-reference
interchangeable
1N4385AInterchangeable
interchangeable cross-reference
interchangeable
5517-7Interchangeable
interchangeable cross-reference
interchangeable
IN4385Interchangeable
interchangeable cross-reference
interchangeable
92174Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55177?
55177 is a RESISTOR,VARIABLE,WIRE WOUND,PRE manufactured by Mobiparts.
What parts can replace 55177?
There are 9 known substitutes for 55177: GB14B10, RSPG-10A, 1N4385A and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55177?
55177 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-514-6719. This indicates validated use in U.S. government and defense supply chains.
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