PartsTable
Technical Data Sheet
OTU-7-1 ✓ 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 PLUG,VENT is a the manufacturer industrial component. Key specifications include length: 1.625 INCHES NOMINAL IN, material: COPPER ALLOY, thread_length: 0.594 INCHES NOMINAL IN, inside_diameter: 0.250 INCHES NOMINAL IN, vent_hole_shape: ROUND, outside_diameter: 1.125 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 5340-01-287-5951, 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
OTU-7-1
NSN: 5340-01-287-5951
FSC: 5340
CAGE: 64055 — OKLAHOMA SAFETY EQUIPMENT CO INC DBA OSECO DIV OKLAHOMA SAFETY EQUIPMENT CO. (DBA OSECO) (USA)
SPECIFICATIONS
length1.625 INCHES NOMINAL IN
materialCOPPER ALLOY
thread_length0.594 INCHES NOMINAL IN
inside_diameter0.250 INCHES NOMINAL IN
vent_hole_shapeROUND
outside_diameter1.125 INCHES NOMINAL IN
special_featuresHEXAGON SHPE HEAD
vent_hole_diameter0.250 INCHES NOMINAL IN
vent_hole_quantity4
end_connection_typeTHREADED
fsc_application_dataINLET MANIFOLD ASSY
end_item_identificationLIQ.OXYGEN MULT. SERV. UNIT
NSN5340-01-287-5951
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: OTU-7-1 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
KEY FEATURES
OUTSIDE DIAMETER: 1.125 INCHES NOMINAL IN
LENGTH: 1.625 INCHES NOMINAL IN
FSC APPLICATION DATA: INLET MANIFOLD ASSY
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 25-18 NPT
VENT HOLE QUANTITY: 4
VENT HOLE SHAPE: ROUND
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.125 INCHES NOMINAL IN
LENGTH1.625 INCHES NOMINAL IN
END ITEM IDENTIFICATIONLIQ.OXYGEN MULT. SERV. UNIT
FSC APPLICATION DATAINLET MANIFOLD ASSY
THREAD SIZE AND SERIES/TYPE DESIGNATOR25-18 NPT
VENT HOLE QUANTITY4
VENT HOLE SHAPEROUND
MATERIALCOPPER ALLOY
THREAD LENGTH0.594 INCHES NOMINAL IN
END CONNECTION TYPETHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
60-004-1Upgraded Successor
successor cross-reference
successor
1682632Upgraded Successor
successor cross-reference
successor
6530NCM251243Upgraded Successor
successor cross-reference
successor
SC-C-600041Interchangeable
interchangeable cross-reference
interchangeable
173048Interchangeable
interchangeable cross-reference
interchangeable
24530-49Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is OTU-7-1?
OTU-7-1 is a PLUG,VENT.
What parts can replace OTU-7-1?
There are 9 known substitutes for OTU-7-1: 60-004-1, 1682632, 6530NCM251243 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for OTU-7-1?
OTU-7-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-287-5951. This indicates validated use in U.S. government and defense supply chains.
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