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1281-014 3IN — 1281-014 3IN

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1281-014 3IN: 1281-014 3IN.

The 1281-014 3IN is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-453-6020, 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
1281-014 3IN
NSN: 4820-01-453-6020
FSC: 4820 — Valves, Nonpowered
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
Part Number1281-014 3IN
NSN4820-01-453-6020
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1281-014 3IN · 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
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FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
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BOLT CIRCLE NOMINAL DIAMETER: 5.500 INCHES ALL ENDS IN
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CONNECTION TYPE: FLANGE ALL ENDS
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MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY
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BOLT HOLE NOMINAL DIAMETER: 0.562 INCHES ALL ENDS IN
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OPERATING PRESSURE: 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER5.500 INCHES ALL ENDS IN
CONNECTION TYPEFLANGE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A-494 R -30C ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
BOLT HOLE NOMINAL DIAMETER0.562 INCHES ALL ENDS IN
OPERATING PRESSURE100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE DEGF
NOMINAL OUTSIDE DIAMETER6.625 INCHES ALL ENDS IN
BOLT HOLE QUANTITY8 ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 1
1281-014-L-0001Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1281-014 3IN?
1281-014 3IN is a 1281-014 3IN.
What parts can replace 1281-014 3IN?
There is 1 known substitute for 1281-014 3IN: 1281-014-L-0001. Substitute compatibility should be verified for your specific system.
What is the NSN for 1281-014 3IN?
1281-014 3IN is cataloged in the U.S. Government catalog under NSN 4820-01-453-6020. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.