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Technical Data Sheet
PartsTable / COMPONENT / 9121-5450-57
9121-5450-57 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include material: ALUMINUM ALLOY 1100, overall_width: 1.750 INCHES NOMINAL IN, administration: INTRAVENOUS, inclosure_type: FULLY INCLOSED, overall_height: 1.880 INCHES NOMINAL IN, overall_length: 3.750 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 4820-01-252-9236, 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
9121-5450-57
NSN: 4820-01-252-9236
FSC: 4820
CAGE: 63888 — MATHERS MECHANICAL LLC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 1100
overall_width1.750 INCHES NOMINAL IN
administrationINTRAVENOUS
inclosure_typeFULLY INCLOSED
overall_height1.880 INCHES NOMINAL IN
overall_length3.750 INCHES NOMINAL IN
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
mounting_methodTHREADED HOLE(S) SINGLE GROUP
connection_styleSOCKET (TUBE) ALL ENDS
special_featuresSINGLE DOSE VIAL; PACKAGE OF 10; LATEX FREE; PRESERVATIVE FREE; STORE AT CONTROLLED ROOM TEMPERATURE; STORE IN A LIGHT RESISTANT CONTAINER.
style_designatorSTRAIGHT THRU
mounting_positionHORIZONTAL OR VERTICAL
NSN4820-01-252-9236
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 9121-5450-57 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
1165-8Interchangeable
interchangeable cross-reference
interchangeable
311-18295-01Interchangeable
interchangeable cross-reference
interchangeable
ST30667Interchangeable
interchangeable cross-reference
interchangeable
986117-1BInterchangeable
interchangeable cross-reference
interchangeable
B11658Interchangeable
interchangeable cross-reference
interchangeable
268L64405-M00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9121-5450-57?
9121-5450-57 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What parts can replace 9121-5450-57?
There are 18 known substitutes for 9121-5450-57: 1165-8, 311-18295-01, ST30667 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9121-5450-57?
9121-5450-57 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-252-9236. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026