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Technical Data Sheet

OTU-1/2MPTX1/2SAE — HEAD AND DISK,SAFETY,PRESSURE RE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

OTU-1/2MPTX1/2SAE: HEAD AND DISK,SAFETY,PRESSURE RE.

HEAD AND DISK,SAFETY,PRESSURE RE. Key specifications include head_type: SCREW, disk_material: COPPER ALLOY, head_material: COPPER ALLOY, burst_pressure: 86.0 PRESSURE POUNDS PER SQUARE INCH GAGE, special_features: CLEAN PER MIL-T-27720D AND GIBSON CRYOGENICS SPECIFICATION, burst_temperature: 72.0 FAHRENHEIT DEGF. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-183-4254, 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-1/2MPTX1/2SAE
NSN: 4820-01-183-4254
FSC: 4820 — Valves, Nonpowered
CAGE: 64055 — OKLAHOMA SAFETY EQUIPMENT CO INC DBA OSECO DIV OKLAHOMA SAFETY EQUIPMENT CO. (DBA OSECO) (USA)
SPECIFICATIONS
head_typeSCREW
disk_materialCOPPER ALLOY
head_materialCOPPER ALLOY
burst_pressure86.0 PRESSURE POUNDS PER SQUARE INCH GAGE
special_featuresCLEAN PER MIL-T-27720D AND GIBSON CRYOGENICS SPECIFICATION
burst_temperature72.0 FAHRENHEIT DEGF
end_item_identificationTMU 24/E OXYGEN NITROGEN TANK
NSN4820-01-183-4254
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: OTU-1/2MPTX1/2SAE · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DISK MATERIAL: COPPER ALLOY
•
BURST PRESSURE: 86.0 PRESSURE POUNDS PER SQUARE INCH GAGE
•
HEAD TYPE: SCREW
•
BURST TEMPERATURE: 72.0 FAHRENHEIT DEGF
•
HEAD MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
DISK MATERIALCOPPER ALLOY
BURST PRESSURE86.0 PRESSURE POUNDS PER SQUARE INCH GAGE
HEAD TYPESCREW
BURST TEMPERATURE72.0 FAHRENHEIT DEGF
HEAD MATERIALCOPPER ALLOY
SPECIAL FEATURESCLEAN PER MIL-T-27720D AND GIBSON CRYOGENICS SPECIFICATION
END ITEM IDENTIFICATIONTMU 24/E OXYGEN NITROGEN TANK
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
4-4-6017-01Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is OTU-1/2MPTX1/2SAE?
OTU-1/2MPTX1/2SAE is a HEAD AND DISK,SAFETY,PRESSURE RE.
What parts can replace OTU-1/2MPTX1/2SAE?
There is 1 known substitute for OTU-1/2MPTX1/2SAE: 4-4-6017-01. Substitute compatibility should be verified for your specific system.
What is the NSN for OTU-1/2MPTX1/2SAE?
OTU-1/2MPTX1/2SAE is cataloged in the U.S. Government catalog under NSN 4820-01-183-4254. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.