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Technical Data Sheet
PartsTable / COMPONENT / 39131
39131 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The BREATHER is a the manufacturer industrial component. Key specifications include filter_type: DRY, overall_height: 2.25 INCHES NOMINAL IN, connection_type: PUSH IN, outside_diameter: 2.00 INCHES NOMINAL IN, end_item_identification: 1940-01-615-8699, thread_size_and_series/type_designator: 0.5 FEMALE NPT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-359-0859, 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
39131
NSN: 5340-00-359-0859
FSC: 5340
CAGE: 54123 — COLSON CORP THE (USA)
SPECIFICATIONS
filter_typeDRY
overall_height2.25 INCHES NOMINAL IN
connection_typePUSH IN
outside_diameter2.00 INCHES NOMINAL IN
end_item_identification1940-01-615-8699
thread_size_and_series/type_designator0.5 FEMALE NPT
part_name_assigned_by_controlling_agencyMINI DRYMICRON; BREATHER
NSN5340-00-359-0859
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 39131 MFR: OEM ⚠ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
18870Interchangeable
interchangeable cross-reference
interchangeable
79455Interchangeable
interchangeable cross-reference
interchangeable
3564-2000Interchangeable
interchangeable cross-reference
interchangeable
3464Interchangeable
interchangeable cross-reference
interchangeable
29550Interchangeable
interchangeable cross-reference
interchangeable
R-95780PC7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 39131?
39131 is a BREATHER.
What parts can replace 39131?
There are 10 known substitutes for 39131: 18870, 79455, 3564-2000 and 7 more. Substitute compatibility should be verified for your specific system.
Is 39131 still available?
39131 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026