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Technical Data Sheet
PartsTable / COMPONENT / U-01 SZ 1 1/4 IN
U-01 SZ 1 1/4 IN ✓ 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

The U-01 SZ 1 1/4 IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-274-7392, 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
U-01 SZ 1 1/4 IN
NSN: 4820-00-274-7392
FSC: 4820
CAGE: 21368 — FAIRBANKS CO THE (USA)
SPECIFICATIONS
Part NumberU-01 SZ 1 1/4 IN
NSN4820-00-274-7392
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: U-01 SZ 1 1/4 IN · 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
•
FLOW CONTROL DEVICE: DISK
•
FEATURES PROVIDED: BONNET PACKING
•
MATERIAL: COPPER ALLOY BODY
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE BODY
•
NOMINAL THREAD SIZE: 1.250 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEDISK
FEATURES PROVIDEDBONNET PACKING
MATERIALCOPPER ALLOY BODY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIALPLASTIC TETRAFLUOROETHYLENE FLOW CONTROL DEVICE
NOMINAL THREAD SIZE1.250 INCHES ALL ENDS IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIALCOPPER ALLOY STEM
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
MATERIALCOPPER ALLOY SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
770Interchangeable
interchangeable cross-reference
interchangeable
89Interchangeable
interchangeable cross-reference
interchangeable
FIGN07Interchangeable
interchangeable cross-reference
interchangeable
106AInterchangeable
interchangeable cross-reference
interchangeable
1AInterchangeable
interchangeable cross-reference
interchangeable
U01 1/4INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is U-01 SZ 1 1/4 IN?
U-01 SZ 1 1/4 IN is a U-01 SZ 1 1/4 IN.
What parts can replace U-01 SZ 1 1/4 IN?
There are 19 known substitutes for U-01 SZ 1 1/4 IN: 770, 89, FIGN07 and 16 more. Substitute compatibility should be verified for your specific system.
Is U-01 SZ 1 1/4 IN still available?
U-01 SZ 1 1/4 IN 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